1. Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology
2. Department of Pathology, Sasaki Institute
3. Department of Pathology, Biosafety Research Center, Foods, Drugs and Pesticides
4. Kashima Laboratory, Mitsubishi Chemical Safety Institute Ltd.
5. Department of Pathology, Dainippon Pharmaceutical Co., Ltd.
6. Experimental Pathology and Chemotherapy Division, National Cancer Center Research Institute