1. Department of Psychiatry and Center for Brain Science, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
2. Division of Gastroenterology and Hepatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
3. WPI Immunology Frontier Research Center, Osaka University, Suita, Japan
4. Department of Pathology, University of Michigan, Ann Arbor, MI, USA
5. Department of Medical Microbiology and Immunology, University of Wisconsin, Madison, WI, USA
6. Department of Natural Sciences, University of Michigan–Dearborn, Dearborn, MI, USA