[Sexuality, contraception and pregnancy in adolescence].
D000293:Adolescent; D003267:Contraception / Q000379:methods*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011253:Pregnancy in Adolescence; D012306:Risk; D012725:Sexual Behavior; D013557:Switzerland
Sexualité, contraception et grossesse chez l'adolescente.