1. Primate Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
2. Department of Basic Veterinary Science, The United Graduate School of Veterinary Sciences, Gifu University, Gifu 501-1193, Japan
3. Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan
4. Frontier Science Research Center, University of Miyazaki, Miyazaki 889-1692, Japan
5. Division of Toxicology, Hatano Research Institute, Food and Drug Safety Center, Kanagawa 257-8523, Japan
6. Laboratory of Comparative Toxicology, School of Veterinary Medicine, Azabu University, Kanagawa 229-8501, Japan