title: Oxprenolol and ventricular ectopic activity of the heart.
mesh_terms: D001145:Arrhythmias, Cardiac / Q000188:drug therapy*; D001294:Attitude to Health; D002986:Clinical Trials as Topic; D006801:Humans; D009203:Myocardial Infarction / Q000150:complications; D010096:Oxprenolol / Q000009:adverse effects / Q000627:therapeutic use*; D010919:Placebos
chemical_list: D010919:Placebos; D010096:Oxprenolol