Maternal and umbilical artery cortisol at birth: relationships with epidural analgesia and newborn alertness.
Biol Res Nurs. 2012 Jul;14(3):269-76. doi: 10.1177/1099800411413460. Epub 2011 Jun 30.
Biol Res Nurs. 2012.
PMID: 21719528
Free PMC article.