Name Info Provider Link
Birth Control free resource MedlinePlus Health Information https://medlineplus.gov/birthcontrol.html
free resource PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/34461669/
free resource Georg Thieme Verlag Stuttgart, New York http://www.thieme-connect.com/DOI/DOI?10.1055/s-0041-1735185
free resource Europe PubMed Central https://europepmc.org/abstract/MED/34461669