Mortality and morbidity in pre-term twins.
D002585:Cesarean Section; D004200:Diseases in Twins; D005260:Female; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D007235:Infant, Premature, Diseases / Q000453:epidemiology*; D008297:Male; D011247:Pregnancy; D014427:Twins