Coronary spasm.
D000788:Angina Pectoris, Variant / Q000175:diagnosis; D000792:Angiography; D001145:Arrhythmias, Cardiac / Q000150:complications; D003327:Coronary Disease / Q000150:complications / Q000503:physiopathology*; D003645:Death, Sudden / Q000209:etiology; D006801:Humans; D009203:Myocardial Infarction / Q000209:etiology