1. Department of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1–1–1 Yayoi, Bunkyo-ku, Tokyo, Japan
2. Yoshizuka Pet Clinic, 5–2–3 Yoshizuka, Hakata-ku, Fukuoka, Japan
3. Miwa Exotic Animal Hospital, 1–25–5 Komagome, Toshima-ku, Tokyo, Japan