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Comparison of the breathing frequency measurements obtained in control, placebo, and corticosterone treated male (A) and female rats (B) Data were obtained during normoxia (baseline) and following 20 min exposure to moderate hypoxia (12% O2). Data are expressed in breaths min−1. *Value different from normoxia. #Value different from the control condition (P < 0.05). †Value different from corresponding male value (P < 0.05).
