1. Department of Clinical Sciences; Cummings School of Veterinary Medicine at Tufts University; North Grafton MA
2. Department of Clinical Sciences; College of Veterinary Medicine; Auburn University; Auburn AL
3. Department of Clinical Sciences; University of Montreal; Saint-Hyacinthe QC Canada
4. Department of Clinical Sciences; Cornell University College of Veterinary Medicine; Ithaca NY
5. Department of Clinical Sciences; NC State College of Veterinary Medicine; Raleigh NC