1. VCA Japan Shiraishi Animal Hospital, Sayamadai, 4−33−2, Sayama 350-1304, Saitama, Japan
2. VCA Japan Ozenji Pet Clinic, Ozenjinishi 3-27-1, Asaoku, Kawasaki 215-0017, Kanagawa, Japan
3. Department of Clinical Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Nishi 2-11, Inada, Obihiro 080-8555, Hokkaido, Japan
4. Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, 2015 SW 16th Avenue, Gainesville, FL 32608, USA