1. From the Department of Veterinary Medicine, Veterinary Medical Teaching Hospital (W.-C.C., H.-Y.C., K.-S.C.), College of Veterinary Medicine, National Chung, Hsing University, Taichung City, Taiwan;
2. VetCT, Orlando, Florida (H.G.H.); and
3. James & Herriot Animal Hospital, Taichung City, Taiwan (K.-Y.L.).