title: Contraception, unintended pregnancies, and sexually transmitted diseases: why isn't a simple solution possible?
authors.affiliation: Family Health International, Research Triangle Park, NC 27709, USA.
authors.forename: W
authors.initials: W
authors.lastname: Cates
mesh_terms: D003267:Contraception / Q000379:methods; D004781:Environmental Exposure; D004813:Epidemiology; D005260:Female; D006801:Humans; D015233:Models, Statistical; D011247:Pregnancy; D011275:Pregnancy, Unwanted; D011634:Public Health; D012307:Risk Factors; D012749:Sexually Transmitted Diseases / Q000517:prevention & control*