1. Hutchinson Institute for Cancer Outcomes Research, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
2. Division of Medical Oncology, University of Washington School of Medicine, Seattle, WA, USA
3. SWOG Statistics and Data Management Center, Seattle, WA, USA
4. Kaiser Permanente-Vallejo/Kaiser Permanente NCORP, Vallejo, CA, USA
5. Cancer Care Specialists of Illinois/Heartland NCORP, Decatur, IL, USA
6. Columbus Oncology Associates, Columbus/Columbus NCORP, Columbus, OH, USA
7. Cancer and Hematology Centers of Western Michigan/Cancer Research Consortium of West Michigan NCORP, Grand Rapids, MI, USA
8. Prisma Health Cancer Institute/NCORP of the Carolinas (Prisma Health), Greenville, SC, USA
9. Ochsner Cancer Institute, New Orleans, LA, USA
10. SWOG Data Operations Center/Cancer Research and Biostatistics (CRAB), Seattle, WA, USA
11. Columbia University, New York, NY, USA