1. Department of Preventive Medicine and Public Health, Shinshu University School of Medicine, Matsumoto, Japan
2. Center for Perinatal, Pediatric, and Environmental Epidemiology, Shinshu University School of Medicine, Matsumoto, Japan
3. Department of Neurology, Nagano Children’s Hospital, Azumino, Japan
4. Life Science Research Center, Nagano Children’s Hospital, Azumino, Japan
5. Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Japan
6. Japan Environment and Children’s Study Programme Office, National Institute for Environmental Studies, Tsukuba, Japan
7. Department of Occupational and Environmental Health, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
8. Department of Occupational Medicine, Shinshu University School of Medicine, Matsumoto, Japan