1. Department of Molecular Microbiology and Immunology, University of Southern California Keck School of Medicine, Los Angeles, CA 90033
2. Department of Medicine, Division of Gastrointestinal and Liver Diseases, University of Southern California Keck School of Medicine, Los Angeles, CA 90033
3. Research and Development Department, PhoenixBio, Co., Ltd, Kagamiyama, Higashi-Hiroshima City, 739-0046 Japan