title: Provocative testing with ergonovine to evaluate the efficacy of treatment with calcium antagonists in variant angina.
mesh_terms: D000328:Adult; D000368:Aged; D000787:Angina Pectoris / Q000188:drug therapy*; D000788:Angina Pectoris, Variant / Q000188:drug therapy*; D004562:Electrocardiography; D004874:Ergonovine / Q000494:pharmacology*; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009543:Nifedipine / Q000627:therapeutic use*; D010480:Perhexiline / Q000627:therapeutic use*; D010880:Piperidines / Q000627:therapeutic use*; D011725:Pyridines / Q000627:therapeutic use*
chemical_list: D010880:Piperidines; D011725:Pyridines; D009543:Nifedipine; D010480:Perhexiline; D004874:Ergonovine