title: Calcium-channel blockers in vasospastic angina--a review.
mesh_terms: D000788:Angina Pectoris, Variant / Q000188:drug therapy*; D002121:Calcium Channel Blockers / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D004110:Diltiazem / Q000627:therapeutic use; D004311:Double-Blind Method; D004874:Ergonovine / Q000037:antagonists & inhibitors; D006801:Humans; D009543:Nifedipine / Q000627:therapeutic use; D014700:Verapamil / Q000627:therapeutic use
chemical_list: D002121:Calcium Channel Blockers; D014700:Verapamil; D004110:Diltiazem; D009543:Nifedipine; D004874:Ergonovine