title: Calcium antagonists and chronic cardiac failure.
mesh_terms: D002121:Calcium Channel Blockers / Q000627:therapeutic use*; D002908:Chronic Disease; D004110:Diltiazem / Q000627:therapeutic use; D006333:Heart Failure / Q000188:drug therapy*; D006801:Humans; D009543:Nifedipine / Q000627:therapeutic use; D014700:Verapamil / Q000627:therapeutic use
chemical_list: D002121:Calcium Channel Blockers; D014700:Verapamil; D004110:Diltiazem; D009543:Nifedipine