title: Value and limitations of provocative testing to assess the efficacy of treatment in variant angina.
mesh_terms: D000788:Angina Pectoris, Variant / Q000175:diagnosis* / Q000188:drug therapy; D002121:Calcium Channel Blockers / Q000627:therapeutic use*; D003080:Cold Temperature; D004110:Diltiazem / Q000627:therapeutic use; D004562:Electrocardiography; D004874:Ergonovine; D005080:Exercise Test; D006801:Humans; D006985:Hyperventilation; D009543:Nifedipine / Q000627:therapeutic use; D010646:Phentolamine / Q000627:therapeutic use; D011433:Propranolol / Q000627:therapeutic use; D014700:Verapamil / Q000627:therapeutic use
chemical_list: D002121:Calcium Channel Blockers; D011433:Propranolol; D014700:Verapamil; D004110:Diltiazem; D009543:Nifedipine; D004874:Ergonovine; D010646:Phentolamine