1. Wake Forest Baptist Comprehensive Cancer Center, Wake Forest School of Medicine, Winston-Salem, North Carolina.
2. Department of Internal Medicine, Section on Hematology and Oncology, Wake Forest School of Medicine, Winston-Salem, North Carolina.
3. Surgical Oncology Service, Department of General Surgery, Wake Forest School of Medicine, Winston-Salem, North Carolina.
4. Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, North Carolina.
5. Department of Pathology, Wake Forest School of Medicine, Winston-Salem, North Carolina.