Bathen-Nöthen A, Heider C, Fernandez A J, Beineke A, Sewell A C, Otto M, Tipold A
Department of Small Animal Medicine and Surgery, University of Veterinary Medicine, Hannover, Germany.
J Vet Intern Med. 2009 Nov-Dec;23(6):1299-302. doi: 10.1111/j.1939-1676.2009.0400.x.