1. Clinical Division of Traumatology, Department of Orthopedics and Trauma Surgery, Medical University of Vienna, 1090 Vienna, Austria
2. Clinical Division of Orthopedics, Department of Orthopedics and Trauma Surgery, Medical University of Vienna, 1090 Vienna, Austria
3. Austrian Academic Institute for Clinical Nutrition, 1090 Vienna, Austria
4. Haus der Barmherzigkeit Wien, Seeböckgasse 30A, 1160 Vienna, Austria