1 Section of Cardiac Surgery, Department of Surgery, University of Chicago, 5841 S Maryland Ave, MC 5040, Ste E500, Chicago, IL 60637. Electronic address: [email protected].
2 Division of Cardiothoracic Surgery, Baylor Heart and Vascular Institute, Baylor University Medical Center, Baylor Scott and White Health, Dallas, Dallas, Texas.
3 Department of Cardiac Surgery, University of Michigan, Ann Arbor, Michigan.