1. University of Washington, Seattle, Washington.
2. Stony Brook University School of Medicine, Stony Brook, New York.
3. University of Southern California-Keck School of Medicine, Los Angeles, California.
4. University Hospitals of Cleveland, Cleveland, Ohio.
5. University of Pennsylvania Perelman Center, Philadelphia, Pennsylvania.
6. Oregon Health & Science University, Portland Oregon.
7. Texas Oncology, Flower Mound and Carrollton, Texas.
8. The Methodist Hospital, Houston, Texas.
9. University Hospitals Seidman Cancer Center, Case Western Reserve University, Cleveland, Ohio.
10. University of Michigan Comprehensive Cancer Center, Ann Arbor, Michigan.
11. Cleveland Clinic, Strongsville, Ohio.
12. Department of Orthopedic Surgery, University of Pennsylvania, Philadelphia, Pennsylvania.