1. Department of EpidemiologyGeisel School of Medicine at Dartmouth Lebanon NH
2. Department of EpidemiologyUniversity of North Carolina at Chapel HillGillings School of Public Health Chapel Hill NC
3. Division of Gastroenterology and HepatologyUniversity of Colorado School of Medicine Denver CO
4. Department of Quantitative Health SciencesCleveland Clinic Cleveland OH
5. Department of EpidemiologyRollins School of Public Health, Emory University and Winship Cancer Institute Atlanta GA
6. Department of Gastroenterology, Hepatology, and NutritionUniversity of Texas M.D. Anderson Cancer Center Houston TX
7. Department of Gastroenterology and HepatologyCleveland Clinic Cleveland OH
8. Division of Environmental Health SciencesUniversity of Minnesota School of Public Health Minneapolis MN
9. VA Medical CenterWhite River Junction, VT and Geisel School of Medicine at Dartmouth Hanover NH
10. Department of MedicineUniversity of North Carolina at Chapel Hill, School of Medicine Chapel Hill NC