1. Department of Small Animal Medicine and Surgery, University of Veterinary Medicine Hannover, Bünteweg 9, 30559 Hannover, Germany
2. AniCura Small Animal Referral Clinic, Alpenstr. 27, 87727 Babenhausen, Germany
3. IVC Evidensia Small Animal Clinic Kalbach, Max-Holder-Straße 37, 60437 Frankfurt am Main, Germany
4. Department of Information and Data Processing Service (IDS), University of Veterinary Medicine Hannover, Bünteweg 2, 30559 Hannover, Germany