1. Department of Anatomy and Cell Biology, RWTH Aachen University, Wendlingweg 2, 52074 Aachen, Germany
2. Department of Oral and Maxillofacial Surgery, RWTH Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany
3. Department of Pathology, RWTH Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany
4. Department of Orthopedic and Trauma Surgery, RWTH Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany
5. Department of Orthopaedic and Spine Surgery, AGAPLESION EV. BATHILDISKRANKENHAUS gemeinnützige GmbH, Maulbeerallee 4, 31812 Bad Pyrmont, Germany