Author's Organization:Chuo Veterinary Clinical Center, Yamagata Prefectural Federation of Agricultural Mutual-Aid Association Chuo Livestock Hygiene Service Center Chuo Veterinary Clinical Center, Yamagata Prefectural Federation of Agricultural Mutual-Aid Association Mogami Livestock Hygiene Service Center Chuo Livestock Hygiene Service Center Department of Veterinary Pathology, School of Veterinary Medicine, Faculty of Agriculture, Iwate University
Published: June 15, 1991Received: August 23, 1990Available on J-STAGE: February 15, 2008Accepted: November 22, 1990
Advance online publication: -
Revised: -