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3.
Tomography ; 9(5): 1617-1628, 2023 08 24.
Artigo em Inglês | MEDLINE | ID: mdl-37736982

RESUMO

To compare the diagnostic effectiveness of chest computed tomography (CT) utilizing a single- versus a dual-reviewer approach in patients with pneumonia secondary to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), we conducted a retrospective observational study of data from a cross-section of 4809 patients with probable SARS-CoV-2 from March to November 2020. All patients had a CT radiological report and reverse-transcription polymerase chain reaction (PCR) results. A dual-reviewer approach was applied to two groups while conducting a comparative examination of the data. Reviewer 1 reported 108 patients negative and 374 patients positive for coronavirus disease 2019 (COVID-19) in group A, and 266 negative and 142 positive in group B. Reviewer 2 reported 150 patients negative and 332 patients positive for COVID-19 in group A, and 277 negative and 131 positive in group B. The consensus result reported 87 patients negative and 395 positive for COVID-19 in group A and 274 negative and 134 positive in group B. These findings suggest that a dual-reviewer approach improves chest CT diagnosis compared to a conventional single-reviewer approach.


Assuntos
COVID-19 , Pneumonia , Humanos , SARS-CoV-2 , COVID-19/complicações , COVID-19/diagnóstico por imagem , Tomografia Computadorizada por Raios X , Teste para COVID-19
4.
Arch. cardiol. Méx ; Arch. cardiol. Méx;93(3): 348-354, jul.-sep. 2023. tab, graf
Artigo em Espanhol | LILACS-Express | LILACS | ID: biblio-1513589

RESUMO

Resumen El soporte nutricional (SN) en pacientes adultos que reciben terapia de oxigenación por membrana extracorpórea (ECMO, extracorporeal membrane oxygenation) es controvertido. Si bien existen guías para el SN en pacientes pediátricos con ECMO, en adultos no se cuenta con estos lineamientos para el uso, tipo, ruta y momento de la terapia nutricional. En pacientes críticamente enfermos es bien sabido que la nutrición enteral (NE) temprana es beneficiosa, no obstante existe la posibilidad de que en pacientes con ECMO la NE temprana condicione complicaciones gastrointestinales. Asimismo, no se han establecido metas calóricas, proteicas y dosis o tipos de micronutrimentos que usar para esta población en específico, siendo un reto para el clínico encargado de brindar el SN. Aunado a esto los pacientes con ECMO son algunos de los más gravemente enfermos en las unidades de cuidados intensivos, donde la desnutrición se asocia con una mayor morbilidad y mortalidad. En cuanto al uso de nutrición parenteral (NP), no se tiene descrito si implica riesgo de falla en el circuito al momento de introducir lípidos al oxigenador. Por lo anterior es imperativa una correcta evaluación e intervención nutricional específica, realizada por expertos en el tema para mejorar el pronóstico y la calidad de vida en esta población, siendo un objetivo primordial en los cuidados de los pacientes adultos que reciben terapia de ECMO.


Abstract Nutritional support in adult patients receiving extracorporeal membrane oxygenation (ECMO) therapy is controversial. Although there are guidelines for the NS (Nutritional support) in pediatric patients with ECMO, in adults these guidelines are not available for the use, type, route and timing of nutritional therapy. In critically ill patients it is well known that early enteral nutrition is beneficial, however there is the possibility that in patients with ECMO early enteral nutrition leads to gastrointestinal complications. Likewise, there have not been established caloric targets, proteins and doses or types of micronutrients to use for this specific population being a challenge for the clinician. In addition, patients with ECMO are some of the most seriously ill in intensive care units, where malnutrition is associated with increased morbidity and mortality. Regarding the use of parenteral nutrition (NP) it has not been described if it implies a risk of circuit failure at the time of introducing lipids to the oxygenator. Therefore, a correct evaluation and specific nutritional intervention by experts in the field is imperative to improve the prognosis and quality of life in this population, which is a primary goal in the care of adult patients receiving extracorporeal membrane oxygen.

5.
Arch Cardiol Mex ; 93(3): 348-354, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37562137

RESUMO

Nutritional support in adult patients receiving extracorporeal membrane oxygenation (ECMO) therapy is controversial. Although there are guidelines for the NS (Nutritional support) in pediatric patients with ECMO, in adults these guidelines are not available for the use, type, route and timing of nutritional therapy. In critically ill patients it is well known that early enteral nutrition is beneficial, however there is the possibility that in patients with ECMO early enteral nutrition leads to gastrointestinal complications. Likewise, there have not been established caloric targets, proteins and doses or types of micronutrients to use for this specific population being a challenge for the clinician. In addition, patients with ECMO are some of the most seriously ill in intensive care units, where malnutrition is associated with increased morbidity and mortality. Regarding the use of parenteral nutrition (NP) it has not been described if it implies a risk of circuit failure at the time of introducing lipids to the oxygenator. Therefore, a correct evaluation and specific nutritional intervention by experts in the field is imperative to improve the prognosis and quality of life in this population, which is a primary goal in the care of adult patients receiving extracorporeal membrane oxygen.


El soporte nutricional (SN) en pacientes adultos que reciben terapia de oxigenación por membrana extracorpórea (ECMO, extracorporeal membrane oxygenation) es controvertido. Si bien existen guías para el SN en pacientes pediátricos con ECMO, en adultos no se cuenta con estos lineamientos para el uso, tipo, ruta y momento de la terapia nutricional. En pacientes críticamente enfermos es bien sabido que la nutrición enteral (NE) temprana es beneficiosa, no obstante existe la posibilidad de que en pacientes con ECMO la NE temprana condicione complicaciones gastrointestinales. Asimismo, no se han establecido metas calóricas, proteicas y dosis o tipos de micronutrimentos que usar para esta población en específico, siendo un reto para el clínico encargado de brindar el SN. Aunado a esto los pacientes con ECMO son algunos de los más gravemente enfermos en las unidades de cuidados intensivos, donde la desnutrición se asocia con una mayor morbilidad y mortalidad. En cuanto al uso de nutrición parenteral (NP), no se tiene descrito si implica riesgo de falla en el circuito al momento de introducir lípidos al oxigenador. Por lo anterior es imperativa una correcta evaluación e intervención nutricional específica, realizada por expertos en el tema para mejorar el pronóstico y la calidad de vida en esta población, siendo un objetivo primordial en los cuidados de los pacientes adultos que reciben terapia de ECMO.


Assuntos
Oxigenação por Membrana Extracorpórea , Desnutrição , Adulto , Humanos , Criança , Qualidade de Vida , Nutrição Parenteral , Unidades de Terapia Intensiva
7.
Medicina (Kaunas) ; 59(7)2023 Jul 21.
Artigo em Inglês | MEDLINE | ID: mdl-37512152

RESUMO

Background and Objectives: Central aortic pressure (CAP) can be measured through noninvasive methods, and CAP wave analysis can provide information about arterial stiffness. The objective of this study was to compare CAP in women with preeclampsia and normotensive postpartum women from an urban region in western Mexico. Materials and Methods: We recruited 78 women in immediate puerperium, including 39 with preeclampsia and 39 with normotension, who received delivery care in our hospital between September 2017 and January 2018. Pulse wave analysis was used to assess central hemodynamics as well as arterial stiffness with an oscillometric device. For this purpose, the measurement of the wave of the left radial artery was obtained with a wrist applanation tonometer and the ascending aortic pressure wave was generated using the accompanying software (V 1.1, Omron, Japan). Additionally, the systolic CAP, diastolic pressure, pulse pressure, heart rate, and rise rate adjusted for a heart rate of 75 bpm were determined. The radial pulse wave was calibrated using the diastolic and mean arterial pressures obtained from the left brachial artery. For all the statistical analyses, we considered p < 0.05 to be significant. Results: The results were as follows: a systolic CAP of 125.40 (SD 15.46) vs. 112.10 (SD 10.12) with p < 0.0001 for women with and without preeclampsia, respectively. Systolic CAP was significantly elevated in women with preeclampsia and could indicate an elevated risk of cardiovascular disease. Conclusion: CAP is an important parameter that can be measured in this group of patients and is significantly elevated in women with postpartum preeclampsia, even when the brachial blood pressure is normal.


Assuntos
Pré-Eclâmpsia , Rigidez Vascular , Gravidez , Humanos , Feminino , Pressão Sanguínea , Pressão Arterial , México/epidemiologia , Período Pós-Parto , Rigidez Vascular/fisiologia , Análise de Onda de Pulso
8.
Medicina (Kaunas) ; 59(5)2023 May 06.
Artigo em Inglês | MEDLINE | ID: mdl-37241121

RESUMO

Background and Objectives: Our primary objective was to study the clinical and biochemical characteristics associated with acute kidney injury (AKI) remission in a group of Mexican patients. Materials and methods: We retrospectively enrolled 75 patients who were diagnosed with AKI and separated the sample into two groups: nonremitting patients (n = 27, 36%) vs. remitting patients (n = 48, 64%). Results: We found significant relationships between nonremitting AKI and previous diagnosis of chronic kidney disease (p = 0.009), higher serum creatinine (Cr) at admission (p < 0.0001), lower estimated glomerular filtration rate (eGFR) (p < 0.0001), maximum serum creatinine during hospitalization (p < 0.0001), higher fractional excretion of sodium (FENa) (p < 0.0003) and 24-h urine protein (p = 0.005), higher serum potassium on admission (p = 0.025), abnormal levels of procalcitonin (p = 0.006), and increased risk of death (p = 0.015). Conclusion: Chronic kidney disease (CKD), lower eGFR, higher levels of serum creatinine during hospitalization, higher FENa and 24-h urine protein, abnormal levels of procalcitonin, and higher serum potassium on admission were associated with nonremitting AKI. These findings may facilitate the rapid identification of patients at risk for nonremitting AKI based on clinical and biochemical characteristics. Furthermore, these findings may inform the design of timely strategies for the vigilance, prevention, and treatment of AKI.


Assuntos
Injúria Renal Aguda , Insuficiência Renal Crônica , Humanos , Estudos Retrospectivos , Creatinina , Pró-Calcitonina , Insuficiência Renal Crônica/complicações , Injúria Renal Aguda/complicações , Taxa de Filtração Glomerular
9.
Cir Cir ; 91(1): 122-130, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36787600

RESUMO

A polytraumatized patient is defined as one who has multiple lesions involving different organs and systems, which are usually serious and lead to life-threatening respiratory or circulatory dysfunction. Traumatic stress in the polytraumatized patient results in many metabolic changes that are evident from the first days, but usually persist for weeks, requiring adequate nutritional support as they influence outcomes. Nutritional treatment should be a priority in the comprehensive treatment of polytraumatized patients since it attenuates the metabolic response to trauma and prevents the deterioration of body reserves. It should be noted that some patients present previous nutritional risk. Nutritional intervention should be considered at the same level as any other therapy that supports organic functions, especially in patients in the intensive care unit. Nutritional intervention in polytraumatized patients is a pillar of treatment that has multiple benefits and can improve prognosis. All efforts must be aimed at the early detection of malnourished patients at nutritional risk and providing timely therapies that improve clinical outcomes.


El paciente politraumatizado se define como aquel que tiene múltiples lesiones que involucran diferentes órganos y sistemas, suelen ser graves y conllevan una disfunción respiratoria o circulatoria que pone en riesgo la vida. El estrés traumático en el paciente politraumatizado da lugar a muchos cambios metabólicos que son evidentes desde los primeros días, pero suelen persistir durante semanas y exigen un adecuado soporte nutricional, ya que influyen en los desenlaces. El tratamiento nutricional debe ser una prioridad en el tratamiento integral de los pacientes politraumatizados, porque atenúa la respuesta metabólica al trauma y evita el deterioro de las reservas corporales (cabe mencionar que algunos pacientes presentan riesgo nutricional previo). La intervención nutricional debe considerarse al mismo nivel que cualquier otra terapia que apoye las funciones orgánicas, sobre todo en pacientes en la unidad de terapia intensiva. La intervención nutricional en pacientes politraumatizados es un pilar en el tratamiento que tiene múltiples beneficios y puede mejorar el pronóstico. Todo esfuerzo debe ir encaminado a la detección temprana de pacientes desnutridos o en riesgo nutricional, y proporcionar de manera oportuna terapias que mejores los desenlaces clínicos.


Assuntos
Unidades de Terapia Intensiva , Humanos , Prognóstico , Estudos Retrospectivos
11.
Cir Cir ; 90(4): 556-563, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35944458

RESUMO

Malnutrition is associated with several complications during hospital stay, including patients who will undergo major surgery. Therefore, it is important to optimize nutritional status in the preoperative period being the main objective restoring metabolic and immunological abnormalities. Preoperative fasting is a common practice in clinical settings, although it has been shown to induce insulin resistance. One intervention to avoid this practice is the implementation of the ERAS (Enhanced Recovery After Surgery) protocol. Proper nutritional assessment in hospitalized patients is the cornerstone to identify patients at nutritional risk, or those in malnutrition who may benefit from early nutritional interventions. The feeding route should be chosen according to the patient's condition, either orally with the use of nutritional supplements and in those where calorie requirements cannot be achieved by oral, enteral nutrition is the next logical step, reserving parenteral nutritional support in patients with non-functional gastrointestinal tracts in order to improve postoperative morbidity and mortality.


La desnutrición se asocia con una larga lista de complicaciones intrahospitalarias, incluidos aquellos pacientes que se someterán a cirugía mayor. Por lo tanto, es importante optimizar el estado nutricional en el período preoperatorio, siendo el objetivo principal la restauración de anomalías metabólicas e inmunitarias. El ayuno preoperatorio es una práctica sistemática en el ámbito clínico, a pesar de que se ha demostrado que induce resistencia a la insulina. Una de las intervenciones para evitar dicha práctica es la implementación del protocolo ERAS (Enhanced Recovery After Surgery). Una correcta valoración nutricional en los pacientes hospitalizados es de vital importancia para identificar aquellos con riesgo nutricional, o bien aquellos en desnutrición que pudieran beneficiarse de intervenciones nutricionales tempranas. La ruta de alimentación debe elegirse de acuerdo con el estado del paciente, por vía oral con el uso de suplementos nutricionales o con nutrición enteral en aquellos cuyos requerimientos calóricos no logran ser alcanzados por dicha vía, y reservando el apoyo nutricional parenteral para aquellos con tracto gastrointestinal no funcional, con el objetivo de mejorar la morbilidad y la mortalidad posoperatorias.


Assuntos
Desnutrição , Nutrição Parenteral , Nutrição Enteral , Humanos , Tempo de Internação , Desnutrição/etiologia , Desnutrição/prevenção & controle , Estado Nutricional , Apoio Nutricional , Nutrição Parenteral/métodos , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/prevenção & controle
12.
Arch. cardiol. Méx ; Arch. cardiol. Méx;91(2): 221-228, abr.-jun. 2021. tab, graf
Artigo em Espanhol | LILACS | ID: biblio-1248789

RESUMO

Resumen La insuficiencia cardiaca (IC) representa uno de los problemas mundiales de salud pública más importantes, ya que existe un aumento en su prevalencia y se estima que 23 millones de la población mundial viven con este problema. Esta entidad se define por la presencia de anormalidades estructurales y funcionales del músculo cardiaco que conducen a un deterioro en la capacidad del llenado y eyección ventricular. Múltiples comorbilidades se han asociado a un incremento en el riesgo de desarrollo de enfermedades cardiovasculares. La hipertensión se ha reconocido como uno de los factores más importantes, sin embargo, la obesidad, el síndrome metabólico, así como la diabetes, también juegan un papel importante en la aparición de dicha enfermedad. Es frecuente encontrar en pacientes hospitalizados con IC deterioro en el estado nutricional caracterizado principalmente por la presencia de deficiencias nutricionales y sarcopenia, que, en ocasiones, puede progresar y manifestarse como caquexia. Por lo anterior, una evaluación adecuada mediante el uso correcto de herramientas para detección de riesgo nutricional es imperativa, se hace necesaria para prevenir los riesgos que esto implica. Existen múltiples parámetros antropométricos y bioquímicos para definir el estado nutricional de los pacientes hospitalizados, sin embargo, las alteraciones en el volumen sanguíneo presentes en pacientes con IC pueden alterar el resultado de dicha evaluación. Las modificaciones dietéticas en la prevención y tratamiento de diversas enfermedades cardiovasculares mediante un buen apego a patrones de alimentación tales como la dieta DASH (enfoques dietéticos para detener la hipertensión, por sus siglas en inglés) y la dieta mediterránea se han asociado inversamente con la incidencia de IC.


Abstract Heart failure (HF) is one of the most important global public health problems, as there is an increase in its prevalence and an estimated 23 million of the world's population live with this problem. HF is defined by the presence of structural and functional abnormalities of the cardiac muscle leading to an impairment of ventricular filling and ejection. Multiple comorbidities have been associated with an increased risk of developing cardiovascular diseases. Hypertension has been recognized as one of the most important factors, however, obesity, metabolic syndrome, as well as diabetes also play an important role in the onset of the disease. It is common to find in decompensated heart failure hospitalized patients an impaired nutritional status characterized mainly by the presence of nutritional deficiencies and sarcopenia, which can sometimes progress to cachexia. Therefore, an adequate evaluation through the correct use of nutritional risk tools should be the cornerstone to the prevention of risks. Multiple anthropometric and biochemical parameters are available to establish the nutritional status of hospitalized patients, however, alterations in blood volume presented in patients with HF may alter the result of such assessment. The effectiveness of dietary modifications in the prevention and treatment of different cardiovascular diseases enhanced by appropriate adherence to eating patterns such as the DASH and Mediterranean diet have been inversely associated with the incidence of HF.


Assuntos
Humanos , Caquexia , Desnutrição , Insuficiência Cardíaca/complicações , Doenças Cardiovasculares , Estado Nutricional , Fatores de Risco de Doenças Cardíacas
13.
J Equine Vet Sci ; 101: 103434, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33993925

RESUMO

The economic relevance, populational importance and expansion of the Colombian Paso Horse to other latitudes calls for a growth in studies based on this type of horse. Lack of written reports about the relationship of the distal phalanx (DP) within the hoof in this gaited horse makes it important to establish a baseline to determine hoof health and possible alterations. The purpose of this study was to report, for the first time, the positional parameters of the distal phalanx, and its relationship within the hoof in sound Colombian Paso Horses. A latero-medial radiographic image of each digit was taken in 45 horses between 3 and 5 years old, distributed into groups according to the gaits determined by FEDEQUINAS. Three angles and three distances were measured. The dorsal wall thickness (W-T) was measured proximally and distally, and the sole depth (P-S) was measured dorsally and palmarly/plantarly. As expected, these distances showed moderate to strong positive correlations in front (W-Tp/W-Td r = 0.53; P-Sd/P-Sp r = 0.72) and hind feet (W-Tp/W-Td r = 0.61; P-Sd/P-Sp r = 0.71). The palmar/plantar angle of the distal phalanx (PA) and sole depth (P-S) showed that the distal phalanx of the hind feet is flatter compared to the front. The results of this study show differences in the positional parameters of distal phalanx compared to other breeds of horses and provides information for veterinarians and farriers working with Colombian Paso Horses.


Assuntos
Falanges dos Dedos da Mão , Casco e Garras , Animais , Colômbia , Extremidades , Falanges dos Dedos da Mão/diagnóstico por imagem , Marcha , Casco e Garras/diagnóstico por imagem , Cavalos
14.
Arch Cardiol Mex ; 91(2): 221-228, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33887757

RESUMO

Heart failure (HF) is one of the most important global public health problems, as there is an increase in its prevalence and an estimated 23 million of the world's population live with this problem. HF is defined by the presence of structural and functional abnormalities of the cardiac muscle leading to an impairment of ventricular filling and ejection. Multiple comorbidities have been associated with an increased risk of developing cardiovascular diseases. Hypertension has been recognized as one of the most important factors, however, obesity, metabolic syndrome, as well as diabetes also play an important role in the onset of the disease. It is common to find in decompensated heart failure hospitalized patients an impaired nutritional status characterized mainly by the presence of nutritional deficiencies and sarcopenia, which can sometimes progress to cachexia. Therefore, an adequate evaluation through the correct use of nutritional risk tools should be the cornerstone to the prevention of risks. Multiple anthropometric and biochemical parameters are available to establish the nutritional status of hospitalized patients, however, alterations in blood volume presented in patients with HF may alter the result of such assessment. The effectiveness of dietary modifications in the prevention and treatment of different cardiovascular diseases enhanced by appropriate adherence to eating patterns such as the DASH and Mediterranean diet have been inversely associated with the incidence of HF.


La insuficiencia cardiaca (IC) representa uno de los problemas mundiales de salud pública más importantes, ya que existe un aumento en su prevalencia y se estima que 23 millones de la población mundial viven con este problema. Esta entidad se define por la presencia de anormalidades estructurales y funcionales del músculo cardiaco que conducen a un deterioro en la capacidad del llenado y eyección ventricular. Múltiples comorbilidades se han asociado a un incremento en el riesgo de desarrollo de enfermedades cardiovasculares. La hipertensión se ha reconocido como uno de los factores más importantes, sin embargo, la obesidad, el síndrome metabólico, así como la diabetes, también juegan un papel importante en la aparición de dicha enfermedad. Es frecuente encontrar en pacientes hospitalizados con IC deterioro en el estado nutricional caracterizado principalmente por la presencia de deficiencias nutricionales y sarcopenia, que, en ocasiones, puede progresar y manifestarse como caquexia. Por lo anterior, una evaluación adecuada mediante el uso correcto de herramientas para detección de riesgo nutricional es imperativa, se hace necesaria para prevenir los riesgos que esto implica. Existen múltiples parámetros antropométricos y bioquímicos para definir el estado nutricional de los pacientes hospitalizados, sin embargo, las alteraciones en el volumen sanguíneo presentes en pacientes con IC pueden alterar el resultado de dicha evaluación. Las modificaciones dietéticas en la prevención y tratamiento de diversas enfermedades cardiovasculares mediante un buen apego a patrones de alimentación tales como la dieta DASH (enfoques dietéticos para detener la hipertensión, por sus siglas en inglés) y la dieta mediterránea se han asociado inversamente con la incidencia de IC.


Assuntos
Caquexia , Insuficiência Cardíaca , Desnutrição , Doenças Cardiovasculares , Fatores de Risco de Doenças Cardíacas , Insuficiência Cardíaca/complicações , Humanos , Estado Nutricional
15.
Cir Cir ; 88(Suppl 1): 116-119, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32963385

RESUMO

Los leiomiomas gástricos son tumoraciones submucosas benignas, poco comunes, que se originan del músculo liso. Clínicamente son asintomáticos, con buen pronóstico y con pocas complicaciones a largo plazo. Reportamos el caso de un joven de 16 años que se presenta a la clínica con melena y dolor abdominal. En la endoscopia se reporta una tumoración prepilórica, ulcerada y cubierta de fibrina. El estudio histopatológico mostró una neoplasia mesenquimal con positividad inmunohistoquimica para desmina y actina, así como negatividad para C-kit, DOG-1 y S-100, compatible con leiomioma gástrico. Fue intervenido quirúrgicamente realizándose antrectomía laparoscópica con reconstrucción en Y de Roux de manera exitosa.Gastric leiomyomas are rare, benign submucosal tumors originating from smooth muscle cells. They are usually asymptomatic, having good prognosis with limited long-term complications. A 16-year-old young man comes to our clinic and reports melena and abdominal pain. Upper endoscopy revealed a prepyloric, ulcerated, fibrin-covered tumor. Histopathological examination showed a positive immunohistochemical stain mesenchymal neoplasm for desmin and muscle actin, being negative for C-kit, DOG-1 and S100 proteins, consistent with gastric leiomyoma. Antrectomy with Roux-en-Y gastrojejunostomy was successfully performed.


Assuntos
Leiomioma , Hemorragia Gastrointestinal/etiologia , Humanos , Leiomioma/complicações , Leiomioma/cirurgia
16.
Twin Res Hum Genet ; 22(6): 609-610, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-31840625

RESUMO

Despite the well-known relevance of twin studies in the medical and social sciences and the growing number of twin registries throughout the world, Latin America has not fully incorporated into the twin research community. We describe the first steps taken toward developing a twin registry in Mexico: its aim, organization, recruiting potential and main short-term objectives.


Assuntos
Doenças em Gêmeos/epidemiologia , Doenças em Gêmeos/genética , Sistema de Registros/estatística & dados numéricos , Gêmeos Dizigóticos/genética , Gêmeos Monozigóticos/genética , Adolescente , Criança , Pré-Escolar , Feminino , Seguimentos , Humanos , Lactente , Recém-Nascido , Masculino , México/epidemiologia , Pais , Seleção de Pacientes , Inquéritos e Questionários
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