1. Department for Orthopaedics and Sports Medicine, Small Animal Clinic, University of Veterinary Medicine Hannover Foundation, Hannover, Germany
2. Institute for Biometry, Epidemiology and Information Processing, University of Veterinary Medicine Hannover Foundation, Hannover, Germany
3. Institute for General Radiology and Medical Physics, University of Veterinary Medicine Hannover Foundation, Hannover, Germany
4. Clinic for Small Mammals, Reptiles and Birds, University of Veterinary Medicine Hannover Foundation, Hannover, Germany