title: Letter: Ischemic ST segment depression and dyspnea.
mesh_terms: D000787:Angina Pectoris / Q000188:drug therapy; D003327:Coronary Disease / Q000175:diagnosis* / Q000503:physiopathology; D004417:Dyspnea / Q000188:drug therapy / Q000209:etiology*; D004562:Electrocardiography; D005080:Exercise Test; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D005996:Nitroglycerin / Q000627:therapeutic use
chemical_list: D005996:Nitroglycerin