Author's Organization:Second Department of Veterinary Public Health, Azabu University Second Department of Veterinary Public Health, Azabu University Department of Microbiology, Tokyo Metropolitan Research Laboratory of Public Health Department of Microbiology, Tokyo Metropolitan Research Laboratory of Public Health
Published: April 15, 1989Received: March 29, 1988Available on J-STAGE: February 13, 2008Accepted: November 06, 1988
Advance online publication: -
Revised: -