title: Echocardiographic findings of idiopathic dilatation of the pulmonary artery.
mesh_terms: D004108:Dilatation, Pathologic; D004452:Echocardiography; D006337:Heart Murmurs; D006801:Humans; D008297:Male; D008875:Middle Aged; D011651:Pulmonary Artery / Q000000981:diagnostic imaging; D011664:Pulmonary Valve / Q000503:physiopathology*; D011859:Radiography