1. Department of Surgery; Duke University Medical Center; Durham NC
2. Division of Cardiothoracic Surgery; University of Kentucky; Lexington KY
3. Duke University School of Medicine; Durham NC
4. Division of Thoracic Surgery; Duke University Medical Center; Durham NC
5. Division of Cardiothoracic Surgery; Indiana University Health; Indianapolis IN
6. Duke Clinical Research Institute; Durham NC
7. Department of Immunology and Department of Pathology; Duke University Medical Center; Durham NC