1. University of Texas Health Science Center at San Antonio, San Antonio, Texas
2. The Fred Hutchinson Cancer Research Center, Seattle, Washington
3. The Kansas City Community Clinical Oncology Program, Kansas City, Missouri
4. The University of Colorado Health Science Center, Denver, Colorado
5. The James P. Wilmot Cancer Center, University of Rochester School of Medicine, Rochester, New York
6. Wayne State University School of Medicine, Detroit, Michigan
7. University of Western Ontario, Department of Surgical Oncology, London, Ontario
8. Wilford Hall Medical Center, San Antonio, Texas