1. Laboratory of Public Health 2
2. Laboratory of Molecular Biology of Pharmacology; School of Veterinary Medicine, Azabu University; 1-17-71 Fuchinobe, Chuo-ku Sagamihara, Kanagawa 252-5201 Japan
3. Kitagawa Veterinary Hospital; 1-39-1 Minamitokiwadai, Itabashi-ku Tokyo 174-0072 Japan
4. Laboratory of Pharmacology; School of Veterinary Medicine, Azabu University; 1-17-71 Fuchinobe, Chuo-ku, Sagamihara Kanagawa 252-5201 Japan