1 Department of Preventive Medicine and Public Health, School of Medicine, Keio University, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.
2 Institute for Advanced Biosciences, Keio University, Tsuruoka, 997-0052, Japan.
3 Department of Preventive Medicine and Public Health, School of Medicine, Keio University, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan. ttakebayashi@a3.keio.jp.
4 Institute for Advanced Biosciences, Keio University, Tsuruoka, 997-0052, Japan. ttakebayashi@a3.keio.jp.
5 Faculty of Environment and Information Studies, Keio University, Fujisawa, 252-0882, Japan.
6 Division of Environmental and Occupational Health, Department of Social Medicine, Faculty of Medicine, Toho University, Ota-ku, Tokyo, 143-0015, Japan.