Pulmonary arterial hypertension in portal hypertension.
D000818:Animals; D003097:Collateral Circulation; D006801:Humans; D006975:Hypertension, Portal / Q000150:complications* / Q000473:pathology; D006976:Hypertension, Pulmonary / Q000150:complications* / Q000473:pathology / Q000503:physiopathology; D011168:Portal System / Q000473:pathology; D011446:Prospective Studies; D011651:Pulmonary Artery / Q000187:drug effects / Q000473:pathology; D011667:Pulmonary Veins / Q000187:drug effects / Q000473:pathology; D051381:Rats; D012189:Retrospective Studies