title: Coronary artery spasm: an analysis of 4 cases.
mesh_terms: D017023:Coronary Angiography; D003329:Coronary Vasospasm / Q000175:diagnosis* / Q000188:drug therapy; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009543:Nifedipine / Q000627:therapeutic use
chemical_list: D009543:Nifedipine