Outcomes of On- Versus Off-Pump Coronary Artery Bypass Grafting for Acute and Subacute Myocardial Infarction: A Nationwide Propensity Score-Matched Cohort Study - Hyo-Hyun Kim; Jiyoung Shin; Kang Ju Son; Kyung-Jong Yoo; Young-Nam Youn (Journal of Clinical Medicine, 2026)