1. Clinic for Ruminants and Swine Department of Veterinary Medicine Freie Universität Berlin Germany
2. Institute of Veterinary Pathology Department of Veterinary Medicine Freie Universität Berlin Germany
3. Clinic for Cattle Endocrinology University of Veterinary Medicine Hannover Germany
4. Swiss Institute for Equine Medicine (ISME) Department of Clinical Veterinary Medicine Vetsuisse Faculty University of Bern and Agroscope Bern Switzerland