title: Exercise tolerance in patients with angina pectoris: daily variation and effect of pentaerythritol tetranitrate.
mesh_terms: D000328:Adult; D000787:Angina Pectoris / Q000188:drug therapy* / Q000503:physiopathology; D001794:Blood Pressure; D002986:Clinical Trials as Topic; D004562:Electrocardiography; D005080:Exercise Test; D006339:Heart Rate; D006801:Humans; D008297:Male; D008875:Middle Aged; D010146:Pain; D010417:Pentaerythritol Tetranitrate / Q000627:therapeutic use*; D010919:Placebos; D013312:Stress, Physiological; D013997:Time Factors
chemical_list: D010919:Placebos; D010417:Pentaerythritol Tetranitrate