title: Is high-altitude pulmonary arterial hypertension an adaptive phenomenon?
mesh_terms: D000222:Adaptation, Physiological; D000531:Altitude; D006801:Humans; D006976:Hypertension, Pulmonary / Q000209:etiology*; D010100:Oxygen / Q000097:blood; D005082:Physical Exertion; D011652:Pulmonary Circulation; D014692:Ventilation-Perfusion Ratio
chemical_list: D010100:Oxygen