1. Institute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata, Japan
2. Systems Biology Program, Graduate School of Media and Governance, Keio University, Fujisawa, Kanagawa, Japan
3. Intestinal Microbiota Project, Kanagawa Institute of Industrial Science and Technology, Kawasaki, Kanagawa, Japan
4. Next Generation Science Institute, Morinaga Milk Industry Co., Ltd., Zama, Kanagawa, Japan
5. Department of Bacteriology, Faculty of Medical Sciences, Kyushu University, Higashi, Fukuoka, Japan
6. Transborder Medical Research Center, University of Tsukuba, Tsukuba, Ibaraki, Japan
7. PRESTO, Japan Science and Technology Agency, Saitama, Japan