Looping of the umbilical cord around the foetal neck.
D001724:Birth Weight; D002585:Cesarean Section; D005113:Extraction, Obstetrical; D005260:Female; D005313:Fetal Death / Q000453:epidemiology; D005387:Finland; D006801:Humans; D007231:Infant, Newborn; D007746:Labor Presentation; D008297:Male; D007744:Obstetric Labor Complications; D010298:Parity; D011247:Pregnancy; D012737:Sex Factors; D014470:Umbilical Cord / Q000033:anatomy & histology