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