1. Department of Toxicology, Laboratory Animal Science, and Veterinary Anatomy, Azabu University School of Veterinary Medicine, 1-17-71 Chuo, Sagamihara, Kanagawa 252-5201, Japan
2. Kokusan Co., Ltd., 7-8-16 Nishibori Sakura, Saitama 338-0832, Japan
3. Drug Safety Testing Center, 25-1 Kuroiwa, Yoshimi Hiki, Saitama 335-0116, Japan
4. Department of Pathology, The Jikei University School of Medicine, 3-35-8 Nishishimbashi, Minato, Tokyo 105-8461, Japan
5. School of Pharmacy, University of Colorado, Anschutz Medical Campus, 12850 East Montview Blvd., Aurora, CO 80045, USA
6. J-Pharma Co., Ltd., 75-1 Turumi, Kanagawa 230-0046, Japan