Adolescent age and obstetric risk.
D000293:Adolescent; D000367:Age Factors; D004461:Eclampsia / Q000453:epidemiology; D005260:Female; D006069:Gonorrhea / Q000453:epidemiology; D006128:Growth; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D008019:Life Style; D011247:Pregnancy; D011248:Pregnancy Complications / Q000209:etiology*; D011253:Pregnancy in Adolescence; D012306:Risk