title: Clinical efficacy of verapamil alone and combined with propranolol in treating patients with chronic stable angina pectoris.
mesh_terms: D000328:Adult; D000787:Angina Pectoris / Q000175:diagnosis / Q000188:drug therapy*; D001775:Blood Circulation / Q000187:drug effects; D004359:Drug Therapy, Combination; D004562:Electrocardiography; D004874:Ergonovine; D005080:Exercise Test; D006439:Hemodynamics / Q000187:drug effects; D006801:Humans; D008297:Male; D008875:Middle Aged; D011433:Propranolol / Q000627:therapeutic use*; D012146:Rest; D014700:Verapamil / Q000627:therapeutic use*
chemical_list: D011433:Propranolol; D014700:Verapamil; D004874:Ergonovine