1. Shizuoka Institute of Environment and Hygiene
2. Department of Food and Nutritional Sciences, Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka
3. Hiroshima Prefectural Technology Research Institute, Public Health and Environment Center
4. Akita Research Center for Public Health and Environment
5. Fukushima Institute for Public Health
6. Miyazaki Prefectural Institute for Public Health and Environment
7. Mahara Institute of Medical Acarology
8. Myojin Clinic
9. Tamaki Hospital
10. Department of Virology I, National Institute of Infectious Diseases