1. Chugai Research Institute for Medical Science, Inc., 1–135 Komakado, Gotemba, Shizuoka 421–8513, Japan
2. Laboratory of Veterinary Biochemistry, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069–8501, Japan
3. Chugai Pharmaceutical Co., Ltd., 1–135 Komakado, Gotemba, Shizuoka 421–8513, Japan
4. Department of Small Animal Clinical Sciences, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069–8501, Japan