Institution: | 1. Gastrointestinal Laboratory, College Station, TX;2. the Department of Small Animal Clinical Sciences, College Station, TX;3. College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX;4. the Farm Animal Clinic, Vetsuisse Faculty Berne, University of Berne, Bremgartenstrasse, Switzerland;5. the Department of Clinical Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, MS |