Clinical and obstetric risk factors for preterm delivery.
D000293:Adolescent; D000328:Adult; D001835:Body Weight; D036861:Delivery, Obstetric; D005260:Female; D005865:Gestational Age; D006470:Hemorrhage / Q000150:complications; D006801:Humans; D007231:Infant, Newborn; D008572:Menarche; D008597:Menstrual Cycle; D007752:Obstetric Labor, Premature / Q000209:etiology*; D010298:Parity; D011247:Pregnancy; D011248:Pregnancy Complications; D011295:Prenatal Care; D012306:Risk; D012959:Socioeconomic Factors; D014552:Urinary Tract Infections / Q000150:complications