Name Info Provider Link
Endoscopy free resource MedlinePlus Health Information https://medlineplus.gov/endoscopy.html
free resource PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/35416860/
free resource Scientific Electronic Library Online https://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-86502022000100205&lng=en&nrm=iso&tlng=en
free resource Europe PubMed Central https://europepmc.org/abstract/MED/35416860