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Guo DC, Li YD, Yang YH, Zhu WW, Sun LL, Jiang W, Ye XG, Cai QZ, Lu XZ. Influence of impaired right ventricular contractile reserve on exercise capacity in patients with precapillary pulmonary hypertension: A study with exercise stress echocardiography. Echocardiography. 2019 Apr;36(4):671–7. doi: 10.1111/echo.14283. PMID: 30793801. |