1. Health and Safety Division, Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government
2. United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology
3. Department of Microbiology, Tokyo Metropolitan Institute of Public Health
4. Johnanjima Branch Office, Animal Care and Consultation Center, Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government
5. Shibaura Meat and Sanitary Inspection Station, Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government
6. College of Agriculture, Ibaraki University