
Keywords: آنژین پریزمتال; acetylcholine; coronary spasm; ergonovine; Prinzmetal's angina; provocation testingACH, acetylcholine; CFR, coronary flow reserve; CS, coronary spasm; ER, ergonovine; IC, intracoronary; IV, intravenous; MI, myocardial infarction; SCA, sudden cardiac arres