1. Division of Evidence-Based Medicine; Department of Internal Medicine; Morsani College of Medicine; University of South Florida; Tampa Florida
2. Moffitt Cancer Center; Tampa Florida
3. Washington University School of Medicine; St Louis Missouri
4. Brigham and Women's Hospital; Boston Massachusetts
5. Johns Hopkins Hospital; Baltimore Maryland
6. Center for Blood Research; The University of British Columbia; Vancouver British Columbia Canada
7. University of Washington Medical Center and Seattle Cancer Care Alliance; Seattle Washington
8. Ottawa Hospital and Research Institute; Ottawa Ontario Canada