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Comparison of peak myofiber wall stress between control and pulmonary arterial hypertension (PAH) groups in the left ventricular free wall (LVFW; A) and right ventricular free wall (RVFW; B) regions. RVEDV/LVEDV, ratio of right ventricular end-diastolic volume to left ventricular end-diastolic volume. *P < 0.01, statistical significance between groups.
