Inderpal S Sarkaria1, James D Luketich2. 1. Division of Thoracic and Foregut Surgery, Department of Cardiothoracic Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pa. 2. Division of Thoracic and Foregut Surgery, Department of Cardiothoracic Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pa. Electronic address: luketichjd@upmc.edu.