1. University of California, Berkeley
2. Division of Thoracic Surgery, Department of Surgery, Massachusetts General Hospital, Boston
3. Slone Epidemiology Center, Boston University, Boston, Massachusetts
4. Northeastern University, Boston, Massachusetts
5. Division of Thoracic Surgery, Department of Surgery, Boston University School of Medicine, Boston, Massachusetts
6. Division of Hematology Oncology, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts