1. Laboratory of Comparative Pathology, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
2. Laboratory of Pathology, School of Veterinary Medicine, Mongolian University of Life Sciences, Ulaanbaatar, Mongolia
3. Laboratory of Pathology, Institute of Veterinary Medicine, Mongolian University of Life Sciences, Ulaanbaatar, Mongolia
4. Laboratory of Infectious Disease and Immunology, Institute of Veterinary Medicine, Mongolian University of Life Sciences, Ulaanbaatar, Mongolia