Author's Organization:Department of Veterinary Pathology, Nippon Veterinary and Animal Science University Department of Veterinary Pathology, Nippon Veterinary and Animal Science University Department of Veterinary Pathology, Nippon Veterinary and Animal Science University Department of Veterinary Pathology, Nippon Veterinary and Animal Science University
Published: December 15, 1991Received: January 10, 1991Available on J-STAGE: February 15, 2008Accepted: September 10, 1991
Advance online publication: -
Revised: -