Adolescent sex development and adult sex behavior in Japan.
D000022:Abortion, Spontaneous; D000293:Adolescent; D000328:Adult; D003075:Coitus; D004542:Ejaculation; D005114:Extramarital Relations; D005193:Family Planning Services; D005260:Female; D006801:Humans; D007564:Japan; D008297:Male; D008393:Marriage; D008418:Masturbation; D008598:Menstruation; D009948:Orgasm; D010541:Permissiveness; D011247:Pregnancy; D012725:Sexual Behavior; D012741:Sexual Maturation