Plasma estrogens and pregnancy-associated plasma proteins: a study of their variability in late pregnancy
Masson, G.M.; Klopper, A.I.; Wilson, G.R.
Obstetrics and Gynecology 50(4): 435-438
1977
ISSN/ISBN: 0029-7844 PMID: 71668 Document Number: 114695
The plasma concentration of several estrogens (unconjugated estradiol and estriol, total estriol, and estriol sulfate) and of the placental proteins hPL and PAPP-C were measured daily for 8 days in 9 subjects. The steroids showed coefficients of variation ranging from 14 to 21%. The proteins were much less variable (PAPP-C 5% and hPL 6%).
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