1. Departments of Veterinary Anatomy, Yamaguchi University
2. Veterinary Pathology, Faculty of Agriculture, Yamaguchi University
3. Department of Anatomy and Biology, Osaka Medical College
4. Department of Immunology, Central Institute for Experimental Animals
5. Department of Obstetrics and Gynecology, Toyama Medical and Pharmaceutical University
6. Animal Research Center, Kyushu Dental College