Variant (Prinzmetal's) form of angina pectoris manifesting in complicating ventricular extrasystoles.
D000787:Angina Pectoris / Q000150:complications* / Q000175:diagnosis; D005117:Cardiac Complexes, Premature / Q000175:diagnosis / Q000209:etiology*; D004562:Electrocardiography; D005260:Female; D006352:Heart Ventricles; D006801:Humans; D008875:Middle Aged; D009203:Myocardial Infarction / Q000175:diagnosis / Q000209:etiology