Four‐vessel umbilical cord - Avnet - 2011 - Ultrasound in Obstetrics & Gynecology - Wiley Online Library
Umbilical cord - Wikipedia
Prenatal diagnosis of four‐vessel umbilical cord with supernumerary vein varix: A case report and literature review - Lei - 2017 - Journal of Obstetrics and Gynaecology Research - Wiley Online Library
Motherboard Birth - “Inside of your baby's umbilical cord are two arteries and one vein. The vein allows nutrients and oxygen to flow from the placenta into the baby. The two arteries
The schematic cross section of human umbilical cord covered with the... | Download Scientific Diagram