[Sex and contraceptive behavior among young single persons].
D000028:Abortion, Induced / Q000706:statistics & numerical data; D000328:Adult; D003268:Contraception Behavior; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D008297:Male; D008393:Marriage; D008800:Mexico; D011247:Pregnancy; D012725:Sexual Behavior; D013334:Students
Conducta sexual y anticonceptiva en jóvenes solteros.