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The flowchart of POPH confirmation, the inclusion and the exclusion. POPH, portopulmonary hypertension; IPAH, idiopathic pulmonary arterial hypertension. sPAP, systolic pulmonary arterial pressure; mPAP, mean pulmonary arterial pressure; mPAWP, mean pulmonary artery wedge pressure; PVR, pulmonary vascular resistance; WHO FC, World Health Organization functional classification.
