Contraception, unintended pregnancies, and sexually transmitted diseases: why isn't a simple solution possible?
作者信息
Cates W
机构信息
Family Health International, Research Triangle Park, NC 27709, USA.
出版信息
Am J Epidemiol. 1996 Feb 15;143(4):311-8. doi: 10.1093/oxfordjournals.aje.a008744.
Abstract
摘要
Zotero 插件