1. Department of Oncology; Centre Vétérinaire Rive-Sud Brossard, Québec J4Y 1A2; Canada
2. Department of Oncology; Centre Vétérinaire Laval Laval, Québec H7T 2P7; Canada
3. Department of Emergency; Centre Vétérinaire Daubigny Québec, Québec G1P 2J3; Canada