1 Department of Surgery 1, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuoku, Sagamihara, Kanagawa 252-5201, Japan. Electronic address: takano-in-loanhead@hotmail.com.
2 Department of Surgery 1, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuoku, Sagamihara, Kanagawa 252-5201, Japan.