Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Upper panel: Progesterone production during the perimenopausal menstrual cycle derived by hormone measurements. Bottom panel: Simulation of progesterone production during the perimenopausal menstrual cycle using the stochastic activity model. The scale differs from that of the experimental data, because values are given in tokens. The rms for the calculation is 1.82 pg/ml.
