1. University of North Carolina at Chapel Hill Nutrition Research InstituteKannapolisNorth CarolinaUSA
2. Department of NutritionSchool of Public HealthUniversity of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
3. Division of GastroenterologyDepartment of MedicineDuke University Medical CenterDurhamNorth CarolinaUSA
4. Division of Gastroenterology and HepatologyDepartment of MedicineUniversity of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
5. Bioinformatics Services DivisionUniversity of North Carolina at CharlotteKannapolisNorth CarolinaUSA
6. Department of PathologyDuke University Medical CenterDurhamNorth CarolinaUSA
7. Department of SurgeryDuke University Medical CenterDurhamNorth CarolinaUSA