1Department of Biostatistics, Harvard School of Public Health, Boston, MA 02115, USA
2Gastrointestinal Unit and Center for the Study of Inflammatory Bowel Disease, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
3Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, MA 02142, USA
4Division of Pediatric Gastroenterology, Hasbro Children's Hospital, The Warren Alpert School of Medicine at Brown University, Providence, RI, 02903, USA
5Gastrointestinal Unit, Children's Hospital and Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
6Department of Gastroenterology, Mount Sinai School of Medicine, New York, NY, 10029, USA
7Center for Computational and Integrative Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA