1. Public Interest Incorporated Foundation, BioSafety Research Center, 582-2, Shioshinden, Iwata, Shizuoka, 437-1213, Japan
2. National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya, Tokyo, 158-8501 Japan
3. Incorporated Administrative Agency Food and Agricultural Materials Inspection Center, 2-772, Suzuki-cho, Kodaira, Tokyo, 187-0011, Japan
4. Food Safety Commission Secretariat, 22nd Fl., Akasaka Park Bld., 5-2-20, Akasaka, Minato-ku, Tokyo, 107-6122, Japan