1. Small Animal Clinic, University of Veterinary Medicine Hanover, Foundation, Bünteweg 9, 30559 Hannover, Germany
2. Institute of Anatomy, University of Veterinary Medicine Hanover, Foundation, Bischofsholer Damm 15, 30173 Hanover, Germany
3. Hospital Veterinario Anicura Valencia Sur, Av. de Picassent, 28, 46460 Valencia, Spain
4. Clinic for Horses, University of Veterinary Medicine Hannover, Foundation, Bünteweg 9, 30559 Hannover, Germany