Epidemiology and aetiology of the preterm baby.
D001724:Birth Weight; D001827:Body Height; D003276:Contraceptives, Oral; D004032:Diet; D004651:Employment; D005260:Female; D005865:Gestational Age; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D007751:Labor, Induced; D008297:Male; D008423:Maternal Age; D007752:Obstetric Labor, Premature / Q000209:etiology; D010298:Parity; D011247:Pregnancy; D011248:Pregnancy Complications; D011251:Pregnancy Complications, Infectious; D011272:Pregnancy, Multiple; D044469:Racial Groups; D012907:Smoking; D012923:Social Class
D003276:Contraceptives, Oral