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. Author manuscript; available in PMC: 2010 Jul 1.
Published in final edited form as: Brain Behav Immun. 2008 Dec 11;23(5):629–635. doi: 10.1016/j.bbi.2008.12.001

Table 2.

Progesterone and estradiol levels in naturally cycling young women across the menstrual cycle (mean ± SEM)

Phase N Progesterone (ng/ml) Estradiol (pg/ml)
Follicular 79 0.49 ± 0.10 116.82 ± 8.71
Luteal 15 8.98 ± 1.10 138.40 ± 13.31