Mortality of premature infants by distance of transportation, place of delivery and urban versus rural origin.
D036861:Delivery, Obstetric; D005260:Female; D006801:Humans; D007223:Infant; D007226:Infant Mortality; D007231:Infant, Newborn; D007234:Infant, Premature; D011247:Pregnancy; D012424:Rural Population; D014186:Transportation
INFANT MORTALITY; INFANT, PREMATURE