title: Efficacy of nifedipine therapy in patients with refractory angina pectoris: significance of the presence of coronary vasospasm.
mesh_terms: D000787:Angina Pectoris / Q000188:drug therapy*; D000788:Angina Pectoris, Variant / Q000188:drug therapy; D001794:Blood Pressure / Q000187:drug effects; D002986:Clinical Trials as Topic; D003329:Coronary Vasospasm / Q000188:drug therapy*; D005260:Female; D005500:Follow-Up Studies; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D008297:Male; D008875:Middle Aged; D009543:Nifedipine / Q000494:pharmacology / Q000627:therapeutic use*; D005996:Nitroglycerin / Q000627:therapeutic use
chemical_list: D005996:Nitroglycerin; D009543:Nifedipine