title: Effect of breathing oxygen in patients with severe pulmonary vascular obstructive disease.
mesh_terms: D000293:Adolescent; D000328:Adult; D006328:Cardiac Catheterization; D002648:Child; D005263:Femoral Artery; D006330:Heart Defects, Congenital / Q000503:physiopathology*; D006345:Heart Septal Defects, Ventricular / Q000503:physiopathology*; D006439:Hemodynamics; D006454:Hemoglobins; D006801:Humans; D006976:Hypertension, Pulmonary / Q000503:physiopathology*; D007201:Indicator Dilution Techniques; D008875:Middle Aged; D010102:Oxygen Inhalation Therapy; D011651:Pulmonary Artery; D011652:Pulmonary Circulation; D014655:Vascular Resistance
chemical_list: D006454:Hemoglobins