Contraception, unintended pregnancies, and sexually transmitted infections: still no simple solutions.
Cates
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Spieler
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D017280:Condoms / Q000706:statistics & numerical data; D003267:Contraception / Q000379:methods*; D003268:Contraception Behavior / Q000523:psychology / Q000706:statistics & numerical data; D005260:Female; D006801:Humans; D008297:Male; D011247:Pregnancy; D011275:Pregnancy, Unwanted / Q000523:psychology; D012307:Risk Factors; D012749:Sexually Transmitted Diseases / Q000517:prevention & control*