Intraoperative Features Improve Model Risk Predictions After Coronary Artery Bypass Grafting oleh Willa Potosnak, BS, Keith A. Dufendach, MD, Chirag Nagpal, PhD, David J. Kaczorowski, MD, Pyongsoo Yoon, MD, Johannes Bonatti, MD, James K. Miller, PhD, Artur W. Dubrawski, PhD