1. Laboratory of Toxicology, Department of Environmental Veterinary Science, Graduate, School of Veterinary Medicine; Hokkaido University; Sapporo Japan
2. Department of Pharmacology, Faculty of Veterinary Medicine; Kasetsart University; Bangkok Thailand
3. Food Control Department, Faculty of Veterinary Medicine; Zagazig University; Zagazig Egypt
4. Laboratory of Wildlife Biology and Medicine, Department of Environmental Veterinary Science; Graduate School of Veterinary Medicine, Hokkaido University; Sapporo Japan
5. Institute for Environmental Sciences; University of Shizuoka; Shizuoka Japan