Name Info Provider Link
subscription/membership/fee required Chinese Medical Association Publishing House Ltd. https://www.yiigle.com/LinkIn.do?linkin_type=pubmed&issn=0529-567X&year=2019&vol=54&issue=5&fpage=318
A practical manual on visual screening for cervical neoplasia free resource International Agency for Research on Cancer - Screening Group https://screening.iarc.fr/viavili.php
Twins, Triplets, Multiple Births free resource MedlinePlus Health Information https://medlineplus.gov/twinstripletsmultiplebirths.html