[1] Centre for Preventive Medical Sciences, Chiba University, Japan
[2] Department of Bioenvironmental Medicine, Graduate School of Medicine, Chiba University, Japan
[3] Research Center for Child Mental Development, Chiba University, Japan
[4] Nagoya City University, Nagoya, Japan
[5] National Institute for Environmental Studies, Tsukuba, Japan
[6] National Center for Child Health and Development, Tokyo, Japan
[7] Hokkaido University, Sapporo, Japan
[8] Tohoku University, Sendai, Japan
[9] Fukushima Medical University, Fukushima, Japan
[10] Chiba University, Chiba, Japan
[11] Yokohama City University, Yokohama, Japan
[12] University of Yamanashi, Chuo, Japan
[13] University of Toyama, Toyama, Japan
[14] Kyoto University, Kyoto, Japan
[15] Osaka University, Suita, Japan
[16] Hyogo College of Medicine, Nishinomiya, Japan
[17] Tottori University, Yonago, Japan
[18] Kochi University, Nankoku, Japan
[19] University of Occupational and Environmental Health, Kitakyushu, Japan
[20] Kumamoto University, Kumamoto, Japan