Authors
Hiromichi Ohtsuka
School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu
Maki Inoue
School of Veterinary Medicine, Kitasato University, Aomori, Japan
Yosuke Maeda
School of Veterinary Medicine, Kitasato University, Aomori, Japan
Taishi Tanabe
School of Veterinary Medicine, Kitasato University, Aomori, Japan
Motoshi Tajima
School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu