title: The enigma of primary pulmonary hypertension.
authors: B G
authors: BG
authors: Krohn
mesh_terms: D015444:Exercise / Q000502:physiology*; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D006976:Hypertension, Pulmonary / Q000503:physiopathology*; D010100:Oxygen / Q000097:blood*; D010809:Physical Fitness / Q000502:physiology; D012307:Risk Factors; D013318:Stroke Volume / Q000502:physiology; D016277:Ventricular Function, Left / Q000502:physiology
chemical_list: D010100:Oxygen