Pregnancy in the teenager: biologic aspects.
D000293:Adolescent; D000367:Age Factors; D001835:Body Weight; D001942:Breast Feeding; D005260:Female; D006801:Humans; D008572:Menarche; D009747:Nutritional Physiological Phenomena; D009751:Nutritional Requirements; D011247:Pregnancy; D011253:Pregnancy in Adolescence