title: Randomized, double-blind comparison of propranolol alone and a propranolol-verapamil combination in patients with severe angina of effort.
mesh_terms: D000368:Aged; D000787:Angina Pectoris / Q000175:diagnosis / Q000188:drug therapy*; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D004359:Drug Therapy, Combination; D004562:Electrocardiography; D006439:Hemodynamics; D006801:Humans; D008297:Male; D008875:Middle Aged; D005082:Physical Exertion; D011433:Propranolol / Q000008:administration & dosage* / Q000627:therapeutic use; D014700:Verapamil / Q000008:administration & dosage*
chemical_list: D011433:Propranolol; D014700:Verapamil