1. University of Schleswig-Holstein Medical
Centre, Kiel Campus, Department of Orthopaedic
Surgery, Michaelisstr. 1, 24015
Kiel, Germany.
2. imland Klinik, Department
of General Surgery, Schleswiger Str. 114-116, 24340 Eckernförde, Germany.
3. Asklepios Westklinikum Hamburg, Department
of Orthopaedic Surgery, Suurheid 20, 22559
Hamburg, Germany.
4. Rheumaklinik Bad Bramstedt, Department
of Orthopaedic Surgery, Oskar-Alexander-Str.
26, 24576 Bad Bramstedt, Germany.