1. Departments of Veterinary Pathology and 2)Veterinary Teaching Hospital, Gifu University, 1-1 Yanagido, Gifu, Japan
2. Departments of Veterinary Pathology and 2)Veterinary Teaching Hospital, Gifu University, 1-1 Yanagido, Gifu, Japan, and and Division of Comparative Pathology, New England Regional Primate Research Center, Harvard Medical School, One Pine Hill Drive, Southborough, Massachusetts, U.S.A.
3. Departmentsof Veterinary Teaching Hospital, Gifu University, 1-1 Yanagido, Gifu, Japan
4. Hist-Vet Inc., 291-3 Hattori, Ueno, Mie, Japan
5. Division of Comparative Pathology, New England Regional Primate Research Center, Harvard Medical School, One Pine Hill Drive, Southborough, Massachusetts, U.S.A.