Author's Organization:Veterinary Public Health, Azabu University Veterinary Public Health, Azabu University Veterinary Microbiology, Faculty of Agriculture, Miyazaki University Veterinary Public Health, Azabu University
Published: October 15, 1988Received: February 22, 1988Available on J-STAGE: February 13, 2008Accepted: June 13, 1988
Advance online publication: -
Revised: -