1 INSERM U1016, Team "Mucosal microbiota in chronic inflammatory diseases", Université de Paris, Paris, France.
2 Institute for Biomedical Sciences, Center for Inflammation Immunity and Infection, Digestive Disease Research Group, Georgia State University, Atlanta, Georgia.
3 Center for Clinical Epidemiology and Biostatistics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania; Division of Gastroenterology and Hepatology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.