[Problems in adolescent pregnancy].
D000293:Adolescent; D002585:Cesarean Section; D002648:Child; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D007752:Obstetric Labor, Premature / Q000453:epidemiology; D010387:Pelvimetry; D011247:Pregnancy; D011248:Pregnancy Complications / Q000453:epidemiology; D011253:Pregnancy in Adolescence; D012306:Risk; D012940:Social Problems