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. Author manuscript; available in PMC: 2013 Dec 11.
Published in final edited form as: Horm Behav. 2007 Sep 29;53(1):10.1016/j.yhbeh.2007.09.013. doi: 10.1016/j.yhbeh.2007.09.013

Figure 1.

Figure 1

Mean (+SEM) concentrations of plasma cortisol on Day 1 and Day 2 in females who were neither pregnant nor lactating (n = 23), pregnant females (n = 2), lactating females (n = 25), and females who had given birth but their infant had died within 6 months prior to this study (n = 3). Pregnant females and females who lost their infants were not included in the statistical analysis. Cortisol levels were significantly higher on Day 2 than on Day 1, and in lactating than in nonlactating/nonpregnant females. * P ≤ 0.0001.