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.
Hormone levels according to an idealized menstrual cycle (28 days).
Adapted from Draper et al. [18]. Changing levels of female sex hormones are characterized by the phases of the menstrual cycle. EL early luteal, LF late follicular, MF mid-follicular, ML mid-luteal
