1. Helmholtz-Institute for Biomedical Engineering; RWTH Aachen University Medical School; 52074 Aachen Germany
2. Center for Molecular Medicine (CMMC); University of Cologne; 50931 Cologne Germany
3. Genomics Core Facility; European Molecular Biology Laboratory (EMBL); 69117 Heidelberg Germany
4. Department for Orthopedics; RWTH Aachen University Medical School; 52074 Aachen Germany