Diameters of umbilical cord vessels and the weight of the cord in relation to clamping time.
D002585:Cesarean Section; D036861:Delivery, Obstetric; D005260:Female; D006801:Humans; D009929:Organ Size; D010920:Placenta / Q000098:blood supply; D012039:Regional Blood Flow; D013997:Time Factors; D014469:Umbilical Arteries / Q000033:anatomy & histology*; D014471:Umbilical Veins / Q000033:anatomy & histology*