
Keywords: LCA، شریان کرونر سمت چپ; ergonovine; prognosis; vasospastic anginaCAG, coronary angiography; CCB, calcium-channel blocker; ECG, electrocardiography; JCSA, Japanese Coronary Spasm Association; LCA, left coronary artery; MI, myocardial infarction; RCA, right coronary artery; VSA, v