Singh Ameet, Moens Noel M M, Nykamp Stephanie, Bruce Charles W
Department of Clinical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada.
J Am Vet Med Assoc. 2007 Nov 1;231(9):1345-6. doi: 10.2460/javma.231.9.1345.