1. Clinic of Small Animal Internal Medicine Centre for Clinical Veterinary Medicine, Ludwig‐Maximilians‐University Munich Germany
2. Gastrointestinal Laboratory, Department of Small Animal Clinical Sciences College of Veterinary Medicine and Biomedical Sciences, Texas A&M University College Station Texas USA
3. AniCura Clinic of Small Animal Medicine Haar Haar Germany
4. Clinic of Small Animal Medicine Ismaning Ismaning Germany