1. Department of Medicine, University of Washington School of Medicine, Seattle
2. Program in Biostatistics and Biomathematics, Fred Hutchinson Cancer Research Center, Seattle, Washington
3. Department of Family Medicine, Oregon Health and Science University, Portland
4. Department of Family Medicine, University of Vermont, Vineyard Haven, Massachusetts
5. Department of Community and Family Medicine, The Dartmouth Institute for Health Policy and Clinical Practice, Geisel School of Medicine at Dartmouth, Norris Cotton Cancer Center, Lebanon, New Hampshire
6. Department of Community and Family Medicine, The Dartmouth Institute for Health Policy and Clinical Practice, Geisel School of Medicine at Dartmouth, Norris Cotton Cancer Center, Lebanon, New Hampshire6Department of Medicine, Geisel School of Medicine at
7. Providence Cancer Center, Providence Health and Services Oregon, Portland8Department of Medical Informatics and Clinical Epidemiology, Oregon Health and Science University, Portland9Department of Clinical Epidemiology and Medicine, Oregon Health and Scien
8. Department of Pathology, Stanford University School of Medicine, Stanford, California
9. Department of Pathology, Beth Israel Deaconess Medical Center, Boston, Massachusetts12Harvard Medical School, Boston, Massachusetts
10. Department of Laboratory Medicine and the Keenan Research Centre of the Li Ka Shing Knowledge Institute, Toronto, Ontario, Canada14St Michael’s Hospital and the University of Toronto, Ontario, Canada
11. Department of Pathology and University of Vermont Cancer Center, University of Vermont, Burlington