1. Division of Pathology; National Institute of Health Sciences; Setagaya-ku Tokyo Japan
2. Tsukuba Drug Safety, Global Drug Safety, Biopharmaceutical Assessments Core Function Unit, Eisai Product Creation Systems; Eisai Co., Ltd.; Tsukuba Ibaraki Japan
3. Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Faculty of Agriculture; Tokyo University of Agriculture and Technology; Fuchu Tokyo Japan