Hanselman Beth, Kruth Stephen, Poma Roberto, Nykamp Stephanie
Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Ontario, Canada.
J Vet Intern Med. 2006 Jul-Aug;20(4):1029-32. doi: 10.1892/0891-6640(2006)20[1029:hahiad]2.0.co;2.