Shibahara T, Wada Y, Tsunemitsu H, Kubo M, Ishikawa Y, Kadota K
Hokkaido Research Station, National Institute of Animal Health, 4 Hitsujigaoka, Toyohira, Sapporo 062-0045 Japan.
Aust Vet J. 2001 Feb;79(2):133-5. doi: 10.1111/j.1751-0813.2001.tb10722.x.