1. Department of Internal Medicine, Division of Hematology and Oncology; University of California Davis School of Medicine; Sacramento California
2. Surveillance Research Program, National Cancer Institute, National Institutes of Health; Bethesda Maryland
3. Department of Pediatrics; McMaster University; Hamilton Ontario Canada
4. Department of Pathology; McMaster University; Hamilton Ontario Canada
5. Department of Medicine; McMaster University; Hamilton Ontario Canada
6. Applied Research Program, Division of Cancer Control and Population Sciences; National Cancer Institute; Bethesda Maryland
7. Texas A&M Health Science Center School of Public Health; College Station Texas
8. Department of Public Health Sciences; University of California at Davis; Davis California
9. St. Charles Regional Cancer Center; Bend Oregon
10. Department of Radiation Medicine; Oregon Health and Science University; Portland Oregon