1. Department of Orthopaedic Surgery
2. Anatomic Institute
3. Department of Nuclear Medicine
4. Department of Clinical Radiology
5. Institute of Pathology, Ludwig-Maximilians University, Marchioninistrasse 15, D-81377 Munich, Germany.
6. Department of Anatomy and Cell Biology, RWTH University of Aachen, Pauwelsstrasse, Wendlingweg 2, 52057 Aachen, Germany.