Hypoxia and abnormal pulmonary vascular beds.
D000531:Altitude; D001794:Blood Pressure; D002675:Child, Preschool; D006345:Heart Septal Defects, Ventricular / Q000150:complications / Q000503:physiopathology; D006801:Humans; D006976:Hypertension, Pulmonary / Q000209:etiology; D000860:Hypoxia / Q000503:physiopathology*; D008297:Male; D011651:Pulmonary Artery; D011652:Pulmonary Circulation; D014655:Vascular Resistance