Weinshilboum R M, Dunnette J, Raymond F, Kleinberg F
Experientia. 1978 Mar 15;34(3):310-1. doi: 10.1007/BF01923004.
Plasma dopamine-beta-hydroxylase enzymatic activity and immunoreactive protein levels in human umbilical cord blood are only about 2% as great as values in the blood of older subjects. Erythrocyte catechol-0-methyltransferase activity levels in umbilical cord blood are very similar to those in the blood of adult subjects.