1. Nuffield Orthopaedic Centre, Windmill
Road, Oxford, OX3 7HE, UK.
2. Allgemeines Krankenhaus Linz, Abt. Orthopädie , Krankenhausstrasse
9, 4020 Linz, Austria.
3. Semmelweiss University, , Department
of Orthopaedics, Budapest, H-1113, Hungary.
4. IRCCS Orthopaedic Institute, Galeazzi, Milan, Italy.
5. Hôpital Rangueil, 1, Ave
du Pr. Jean Poulhès, TSA 50032, 31059, Toulouse, Cedex
9, France.