title: [The acute effects of oxygen and nitroglycerin on pulmonary hemodynamics in patients with chronic obstructive pulmonary disease].
mesh_terms: D000368:Aged; D005080:Exercise Test; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000503:physiopathology* / Q000628:therapy; D008875:Middle Aged; D005996:Nitroglycerin / Q000494:pharmacology / Q000627:therapeutic use*; D010102:Oxygen Inhalation Therapy; D011652:Pulmonary Circulation / Q000187:drug effects; D011659:Pulmonary Gas Exchange
chemical_list: D005996:Nitroglycerin