1. Gastrointestinal Research Group, Institute of Medical Sciences, University of Aberdeen, Aberdeen, United Kingdom
2. Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA
3. Departments of Epidemiology
4. Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA
5. Clinical and Translational Epidemiology Unit and Division of Gastroenterology, Massachusetts General Hospital, Boston, MA
6. Channing Division of Network Medicine, Department of Medicine
7. Department of Pathology, Brigham and Women’s Hospital, Boston, MA