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Figure 1 | Journal of Negative Results in BioMedicine

Figure 1

From: The female menstrual cycle does not influence testosterone concentrations in male partners

Figure 1

Pilot study results. In a small pilot study, the effect of one female's menstrual cycle on the male partner's mean number of acne foci during 18 months (gray line) and mean salivary testosterone concentrations (black line) during two other months was assessed. A clear peak is seen day 13-15 (around ovulation) with number of acne foci lagging approximately 2 days after the salivary testosterone concentration peak.

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