1. Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030
2. Department of Radiology, University of New Mexico, Albuquerque, New Mexico 87104
3. Hartford Hospital, Hartford, Connecticut 06102
4. Hoag Memorial Hospital, Newport Beach, California 92658
5. Therapy Physics, Inc., Gardena, California 90248
6. Henry Ford Health System, Detroit, Michigan 48202
7. Boulder Community Foothills Hospital, Boulder, Colorado 80303
8. Landauer, Inc., Glenwood, Illinois 60425
9. Carestream Health, Inc., Rochester, New York 14615