Institution: | 1. Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, 2436 Lloyd Veterinary Medical Center, Ames, IA 50011, USA;2. Texas A&M Veterinary Medical Center, West Texas A&M University, Box 60998, Canyon, TX 79016-0001, USA;3. University of Wyoming Extension, 2011 Fairgrounds Road, Casper, WY 82604, USA |