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. Author manuscript; available in PMC: 2009 Oct 1.
Published in final edited form as: Anal Biochem. 2008 Jul 4;381(1):8–17. doi: 10.1016/j.ab.2008.07.001

Figure 2.

Figure 2

Representative 24-hour serum luteinizing hormone (LH) concentration profiles obtained from premenopausal (upper panels) and post-menopausal (bottom panel) subjects that were used as the basis for the simulations. For each subject, serial serum LH concentrations (mIU/mL) were measured at 10-min intervals over 24h (32). Intrasample SDs are shown as vertical lines through each data value. Different scales are used for the vertical axes because of the wide range of serum LH concentrations.