1. Thoracic Oncology and Experimental Therapeutics Programs at the H. Lee Moffitt Cancer Center & Research Institute, Tampa, Fla
2. Department of Pathology at Baylor University Medical Center, Dallas, Texas
3. Department of Pathology at Duke University Medical Center, Durham, NC
4. Division of Gastroenterology/Hepatology at the University of Colorado Health Sciences Center, Denver, Colo.