1. Institute of Hygiene and Environmental Medicine, Justus-Liebig-Universität Giessen, Schubertstrasse 81, 35392 Giessen, Germany
2. Heraeus Medical GmbH, Philipp-Reis-Str. 8-13, 61273 Wehrheim, Germany
3. Institute of Microbiology and Molecular Biology, Justus-Liebig-Universität Giessen, Heinrich-Buff-Ring 26, 35392 Giessen, Germany
4. Department of Orthopaedic Surgery, Justus-Liebig-University, Klinikstrasse 33, 35392 Giessen, Germany
5. Department of Trauma Surgery, University Medical Centre, Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
6. Department of Orthopaedics and Trauma, Medical University of Graz, Auenbruggerplatz 5, 8036 Graz, Austria