1. Division of Hematology-Oncology; Durham VA Medical Center; Durham North Carolina
2. Division of Medical Oncology, Department of Medicine; Duke University; Durham North Carolina
3. Division of Hematology-Oncology, Department of Internal Medicine; SUNY Upstate Medical University; Syracuse New York
4. Department of Internal Medicine; VA Nebraska-Western Iowa Health Care System; Omaha Nebraska
5. Division of Oncology/Hematology, Department of Internal Medicine; University of Nebraska Medical Center; Omaha Nebraska