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. Author manuscript; available in PMC: 2020 May 1.
Published in final edited form as: Psychoneuroendocrinology. 2019 Jan 29;103:233–240. doi: 10.1016/j.psyneuen.2019.01.027

Figure 1.

Figure 1.

Schematic depicting the natural variability in the menstrual hormones estradiol and progesterone across the menstrual cycle. Reprinted with permission from Mulligan et al., 2018, Psychophysiology, e13268.