title: A double-blind controlled trial of the anti-anginal efficacy of nifedipine compared with propranolol.
mesh_terms: D000328:Adult; D000368:Aged; D000787:Angina Pectoris / Q000188:drug therapy*; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D004359:Drug Therapy, Combination; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009543:Nifedipine / Q000627:therapeutic use*; D011433:Propranolol / Q000627:therapeutic use*; D011725:Pyridines / Q000627:therapeutic use*
chemical_list: D011725:Pyridines; D011433:Propranolol; D009543:Nifedipine