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The change in heart rate (A), mean arterial pressure (B), and femoral vascular conductance (C) in both groups of subjects in response to 5 s of neck pressure across the 3 study days: 1) sex hormones suppression with a gonadotropin-releasing hormone antagonist (GnRHa), 2) administration of progesterone (P4; Group 1) or estradiol (E2; Group 2), and 3) administration of both P4 and E2. Data are presented as means ± SE. *P < 0.05 from Study Day 1; †P < 0.05 from Study Day 2.
