1. Mayo Clinic, Rochester, MN
2. National Surgical Adjuvant Breast and Bowel Project Biostatistical Center, and University of Pittsburgh Graduate School of Public Health, Department of Biostatistics, Pittsburgh, PA
3. University of Leuven, KUL, Leuven, Belgium
4. Brigham and Women's Hospital, Boston, MA
5. Mayo Clinic College of Medicine, Rochester, MN
6. Pitie-Salpetriere Hospital, Paris, France
7. Oncology Department, Ospedali Riuniti di Bergamo, Bergamo, Italy
8. Mount Sinai Hospital, Toronto, ON, Canada
9. The University of Texas MD Anderson Cancer Center, Houston, TX
10. Institut Paoli-Calmettes, Marseille, France
11. NSABP, Pittsburgh, PA
12. NSABP, and Severance Biomedical Science Institute and Department of Medical Oncology, Yonsei University College of Medicine, Pittsburgh, PA
13. Swiss Group for Clinical Cancer Research, Bern, Switzerland
14. University Hospital Geneva, Geneva, Switzerland
15. Mayo Clinic, Jacksonville, FL