Menstrual disorders in adolescence.
D000293:Adolescent; D000568:Amenorrhea / Q000209:etiology; D002648:Child; D005260:Female; D006801:Humans; D008595:Menorrhagia / Q000209:etiology; D008599:Menstruation Disturbances / Q000209:etiology*; D009839:Oligomenorrhea / Q000209:etiology