1. University of Pennsylvania, Perelman Center for Advanced Medicine Philadelphia Pennsylvania USA
2. Katholieke Universiteit Leuven Leuven Belgium
3. Department of Radiology Thomas Jefferson University Philadelphia Pennsylvania USA
4. Radiological Physics Services, Inc Plymouth Michigan USA
5. Landauer Medical Physics Cary North Carolina USA
6. Diquad, LLC Steger Illinois USA
7. Intersocietal Accreditation Commission Ellicott City Maryland USA
8. Upstate Medical Physics, PC Victor New York USA
9. Department of Imaging Physics UT MD Anderson Cancer Center Houston Texas USA
10. Food and Drug Administration Center for Device and Radiological Health Silver Spring Maryland USA
11. Sunflower Medical Physics, LLC Sioux Falls South Dakota USA