1. Oregon Health and Science University; Portland OR USA
2. SWOG Statistical Center; Seattle WA USA
3. Fred Hutchinson Cancer Research Center; Seattle WA USA
4. Ontario Cancer Institute/Princess Margaret Hospital; Toronto ON Canada
5. University of Chicago; Chicago IL USA
6. Montefiore Medical Center; Bronx NY USA
7. University of Arkansas for Medical Sciences; Little Rock AR USA
8. Memorial Sloan Kettering Cancer Center; New York NY USA
9. Dana Farber Cancer Institute; Boston MA USA
10. University Health Network-OCI/Princess Margaret Hospital; Toronto ON Canada
11. City of Hope; Duarte CA USA