1. Department for Orthopedics and Traumatology, Karl Landsteiner University of Health Sciences, 3500 Krems, Austria
2. Division of Orthopaedics and Traumatology, University Hospital Krems, Mitterweg 10, 3500 Krems, Austria
3. Medical Practice Sport&Trauma, Pelikangasse 15 A/5, 1090 Vienna, Austria
4. Center for Regenerative Medicine, Danube University Krems, 3500 Krems, Austria