| Affiliation: | 1. Department of Thoracic and Cardiovascular Surgery, University of Texas M.D. Anderson Cancer Center, Houston, Tex;2. Division of Thoracic Surgery, Department of Surgery, Johns Hopkins University, Baltimore, Md;3. Department of Cardiothoracic Surgery, University of Southern California Keck School of Medicine, Los Angeles, Calif;4. Department of Cardiothoracic Surgery, Stanford University, Palo Alto, Calif;5. Division of Cardiothoracic Surgery, Department of Surgery, University of Washington, Seattle, Wash |
