Percutaneous umbilical cord blood sampling - Wikipedia
Cordocentesis | the American Pregnancy Association
Cord blood testing
The Truth About Nuchal Cords (Umbilical Cord Around Baby's Neck)
What is the umbilical cord? | BabyCenter
Evaluating a switch from meconium to umbilical cord tissue for newborn drug testing: A retrospective study at an academic medical center - ScienceDirect
Pollution in Minority Newborns | Environmental Working Group