text: <unk>  or variable threshold angina<unk>  is a syndrome in which there is substantial variation in the magnitude of physical activity that induces anginal chest pain.
option_0: Mixed angina pectoris
option_1: Prinzmetal's angina
option_2: Chronic stable angina
option_3: Angina pectoris
option_4: Lateral myocardial infarction
option_5: STEMI
option_6: Stress cardiomyopathy
option_7: Unstable angina pathophysiology