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Effects of chronic hypoxia on PA and right-side heart pressures. Animals were exposed to normoxia or hypoxia (10% O2) for 21 days. The (A) MPAP, (B) RVSP, (C) RV/(LV + S), and (D) hematocrit are presented as the mean ± standard error of the mean (n=12, *P<0.05). PA, pulmonary artery; MPAP, mean PA pressure; RV, right ventricle; RVSP, right ventricle systolic pressure; LV, left ventricle; RV/(LV + S), RV/LV + septum mass ratio.
