1. Nanyo Core Veterinary Clinic, Ehime P.F.A.M.A.A. Seiyo, Ehime 797–1211, Japan
2. Oozu Veterinary Clinic, Ehime P.F.A.M.A.A. Oozu, Ehime 795–0064, Japan
3. Touyo Veterinary Clinic, Ehime P.F.A.M.A.A. Saijo, Ehime 799–1312, Japan
4. Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739–8528, Japan