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Fertil Steril. 2006 Sep;86(3):723-5. Epub 2006 Jul 7.

Interpopulational differences in the concentrations and ratios of salivary and serum progesterone.

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Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA.


Lower concentrations of salivary P in Bolivian women cannot be attributed to lower serum P or cholesterol or to higher cortisol-binding globulin or cortisol (stress) levels than those of the American women. Whether serum or salivary concentrations in the two population groups better reflect availability of P to the tissues is an unresolved question.

[Indexed for MEDLINE]

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