[Labors complicated by prolapse of the umbilical cord and the perinatal mortality rate].
D005260:Female; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D008297:Male; D007744:Obstetric Labor Complications; D011247:Pregnancy; D014470:Umbilical Cord
Porody powikłoporodowa noworodkow.