title: Recurrence of variant angina after bypass surgery.
mesh_terms: D000787:Angina Pectoris / Q000601:surgery*; D000788:Angina Pectoris, Variant / Q000188:drug therapy / Q000601:surgery*; D001026:Coronary Artery Bypass; D006801:Humans; D009543:Nifedipine / Q000627:therapeutic use; D012008:Recurrence
chemical_list: D009543:Nifedipine