1. Department of Internal MedicineWestern Veterinary Specialist and Emergency CentreCalgaryAlbertaCanada
2. Department of PathologyFaculty of Veterinary MedicineUniversity of CalgaryCalgaryAlbertaCanada
3. School of Veterinary MedicineCalifornia Animal Health and Food Safety LaboratoryUniversity of CaliforniaDavisCaliforniaUSA