De Bosschere H, Simoens P, Ducatelle R, Picavet T
Laboratory of Veterinary Pathology, Bacteriology and Poultry Diseases, Equine Referral Hospital De Bosdreef, Moerbeke-Waasand, Belgium.
Equine Vet J. 1999 Nov;31(6):542-4. doi: 10.1111/j.2042-3306.1999.tb03867.x.