| Affiliation: | 1 Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts;2 Division of Gastroenterology and Nutrition, Children''s Hospital Boston and Harvard Medical School, Boston, Massachusetts;3 Division of Gastroenterology, Brigham and Women''s Hospital and Harvard Medical School, Boston, Massachusetts;4 Channing Division of Network Medicine, Department of Medicine, Brigham and Women''s Hospital and Harvard Medical School, Boston, Massachusetts;5 Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts;6 Department of Nutrition, Harvard School of Public Health, Boston, Massachusetts |
