The sexual behaviour of young people.
Persson
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Department of Obstetrics and Gynaecology, Karolinska Hospital, Stockholm, Sweden.
D000293:Adolescent; D000294:Adolescent Behavior; D017280:Condoms; D003268:Contraception Behavior; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D008297:Male; D012736:Sex Education; D012725:Sexual Behavior; D012749:Sexually Transmitted Diseases / Q000517:prevention & control; D013548:Sweden