1. Division of Cancer Epidemiology and Genetics National Cancer Institute Bethesda Maryland
2. Department of Epidemiology Brown University School of Public Health Providence Rhode Island
3. Center for Public Health, School of Medicine, Dentistry, and Biomedical Sciences Queens University Belfast Belfast Northern Ireland
4. Division of Biomarkers of Early Detection and Prevention, Department of Population Sciences City of Hope Comprehensive Cancer Center Duarte California
5. Division of Research Kaiser Permanente, Northern California Oakland California
6. Section of Gastroenterology and Hepatology, Department of Medicine Baylor College of Medicine Houston Texas
7. Department of Population Health Sciences University of Utah Salt Lake City Utah
8. Public Health Sciences Division Fred Hutchinson Cancer Center Seattle Washington
9. Princess Margaret Cancer Center University Health Network Toronto Ontario Canada
10. Ann Arbor Veterans Affairs Center for Clinical Management Research Ann Arbor Michigan
11. Barrett's Esophagus Program, Division of Gastroenterology University of Michigan Ann Arbor Michigan
12. Division of Gastroenterology and Hepatology University of North Carolina Chapel Hill North Carolina
13. Section of Epidemiology and Population Sciences, Department of Medicine Baylor College of Medicine Houston Texas
14. Dan L. Duncan Comprehensive Cancer Center Baylor College of Medicine Houston Texas
15. Department of Epidemiology, GROW School for Oncology and Biology Maastricht University Medical Center Maastricht Netherlands
16. Program in Cancer Epidemiology Fred Hutchinson Cancer Center Seattle Washington
17. Cancer Control, QIMR Berghofer Medical Research Institute Brisbane Queensland Australia
18. Department of Preventive Medicine University of Southern California/Norris Comprehensive Cancer Center Los Angeles California
19. Department of Epidemiology University of North Carolina Chapel Hill North Carolina