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New combined spasm provocation test in patients with rest angina: intracoronary injection of acetylcholine after intracoronary administration of ergonovine https://t.co/IuLpTiq4f0
New combined spasm provocation test in patients with rest angina: intracoronary injection of acetylcholine after intracoronary administration of ergonovine https://t.co/IuLpTiq4f0