| Affiliation: | 1. Department of Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina;2. Division of General Thoracic Surgery, Mayo Clinic, Rochester, Minnesota;3. Division of Cardiac Surgery, Johns Hopkins University, Baltimore, Maryland;4. Department of Computing, University of West Indies (Mona), Kingston, Jamaica;5. Department of Cardiothoracic Surgery, Stanford University, Stanford, California;6. Division of Cardiac Surgery, University of Rochester, Rochester, New York;7. Department of Thoracic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee;8. Department of Surgery, School of Clinical Medicine and Research, University of the West Indies, Nassau, Bahamas;9. Department of Biostatistics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina;10. Division of Cardiac Surgery, Massachusetts General Hospital, Boston, Massachusetts;11. Division of Cardiothoracic Surgery, University of Washington, Seattle, Washington |
