Secondary amenorrhea in the adolescent.
D000293:Adolescent; D000568:Amenorrhea / Q000175:diagnosis / Q000209:etiology / Q000628:therapy; D001327:Autoimmune Diseases / Q000150:complications; D001927:Brain Diseases / Q000150:complications; D019411:Clinical Laboratory Techniques; D005260:Female; D006801:Humans; D007030:Hypothalamo-Hypophyseal System; D010049:Ovarian Diseases / Q000150:complications; D010051:Ovarian Neoplasms / Q000150:complications; D010060:Ovulation; D010808:Physical Examination; D010900:Pituitary Diseases / Q000150:complications; D011606:Psychosexual Development