title: A simple histologic classification of pulmonary arterial hypertension.
mesh_terms: D001160:Arterioles / Q000473:pathology; D004108:Dilatation, Pathologic; D006801:Humans; D006976:Hypertension, Pulmonary / Q000145:classification* / Q000473:pathology; D006984:Hypertrophy; D011651:Pulmonary Artery / Q000473:pathology*