[Graphics].
D000788:Angina Pectoris, Variant / Q000175:diagnosis* / Q000188:drug therapy; D003329:Coronary Vasospasm / Q000175:diagnosis*; D004562:Electrocardiography; D006801:Humans; D008297:Male; D008875:Middle Aged; D009543:Nifedipine / Q000627:therapeutic use
D009543:Nifedipine
Graphics.