| Cornell University Medical Center |
21 |
| University of California |
12 |
| University of Toronto |
17 |
| National Cancer Center Hospital, Japan |
7 |
| University of Texas M.D. Anderson Cancer Center |
7 |
| University of Washington |
6 |
| Mayo Clinic |
6 |
| Fred Hutchinson Cancer Research Center |
5 |
| Brigham and Women's Hospital |
4 |
| Dana-Farber Cancer Institute |
4 |
| Vanderbilt University |
4 |
| Evanston Hospital |
4 |
| Allegheny General Hospital |
3 |
| Fox Chase Cancer Center |
3 |
| Hospital Germans Trias i Pujol |
3 |
| Hyogo Medical Center for Adults |
3 |
| Medical University of South Carolina |
3 |
| Mount Sinai Hospital |
3 |
| National Cancer Institute, Bethesda |
3 |
| Swedish Medical Center |
3 |
| University of Barcelona |
3 |
| University of North Carolina |
3 |
| Veterans Administration Medical Center |
3 |
| Institut Gustave Roussy |
3 |
| H. Lee Moffitt Cancer Center & Research Institute |
3 |
