1. Department of Clinical Sciences, Faculty of Veterinary Medicine; University of Montreal; 3200 Sicotte, PO Box 5000 Saint-Hyacinthe QC Canada
2. Comparative Orthopedic Research Laboratory, Faculty of Veterinary Medicine; University of Montreal; 3200 Sicotte, PO Box 5000 Saint-Hyacinthe J2S 7C6, QC Canada