[Effect of menarchal age on first pregnancy].
D000293:Adolescent; D041923:Adolescent Development; D005260:Female; D020073:Gravidity; D006801:Humans; D008598:Menstruation / Q000502:physiology*; D011247:Pregnancy / Q000502:physiology
MENSTRUATION/physiology; PREGNANCY/physiology
Die Auswirkung des Menarchealters bei der ersten Geburt.