1. Shaare Zedek Medical Center; Jerusalem Israel
2. Dana Farber Cancer Institute - ECOG-ACRIN Biostatistics Center; Boston Massachusetts
3. Indiana University Cancer Center; Indianapolis Indiana
4. H. Lee Moffitt Cancer Institute; Tampa Florida
5. Memorial Sloan Kettering Cancer; New York New York
6. Rambam Medical Center; Haifa Israel
7. Montefiore Medical Center; Bronx New York
8. Mayo Clinic; Rochester Minnesota
9. Beth Israel Medical Center; New York New York
10. University of Rochester Medical Center; Rochester New York
11. University of Pennsylvania; Philadelphia Pennsylvania
12. Case Western Reserve University, Case Comprehensive Cancer Center; Cleveland Ohio