Umbilical Cord Blood Banking. Obstet. Gynecol. 111, 475–477 (2008). Broxmeyer, H. E. et al. High-efficiency recovery of functional hematopoietic progenitor and stem cells from human cord blood ...

Breech babies are at risk of injury and a prolapsed umbilical cord ... that the maneuver could cause the baby's cord to become entangled or the placenta to separate from the uterus.