Cope R B, White K S, More E, Holmes K, Nair A, Chauvin P, Oncken A
Veterinary Diagnostic Laboratory, College of Veterinary Medicine, Oregon State University, Corvallis, OR 97339, USA.
J Vet Pharmacol Ther. 2006 Jun;29(3):233-6. doi: 10.1111/j.1365-2885.2006.00730.x.