Sykes Jane E, Cannon Allison B, Norris Aimee J, Byrne Barbara A, Affolter Timothy, O'Malley Michael A, Wisner Erik R
Departments of Medicine & Epidemiology, University of California, Davis 95616, USA.
J Vet Intern Med. 2007 Sep-Oct;21(5):1108-12. doi: 10.1892/0891-6640(2007)21[1108:mtciia]2.0.co;2.