1. Department of Osteology and Biomechanics, University Medical Center, Lottestrasse 55a, 22529 Hamburg, Germany
2. Forum Medical Technology Health Hamburg (FMTHH), Butenfeld 34, 22529 Hamburg, Germany
3. Interdisciplinary Competence Center for Interface Research (ICCIR), Martinistrasse 52, 20251 Hamburg, Germany
4. Institute of Materials Research, Helmholtz-Zentrum Geesthacht, Max-Planck-Straße 1, 21502 Geesthacht, Germany
5. Materials Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States