title: Effects of nitroglycerin upon the presystolic gallop.
mesh_terms: D000328:Adult; D000368:Aged; D000787:Angina Pectoris / Q000150:complications; D001145:Arrhythmias, Cardiac / Q000188:drug therapy*; D003327:Coronary Disease / Q000150:complications*; D004562:Electrocardiography; D005260:Female; D006333:Heart Failure / Q000150:complications; D006352:Heart Ventricles; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000150:complications; D005996:Nitroglycerin / Q000627:therapeutic use*; D010701:Phonocardiography
chemical_list: D005996:Nitroglycerin