1. Institute of Human Genetics; University of Ulm; Ulm Germany
2. Department of Orthopedics; University of Ulm; Ulm Germany
3. Center for Genomics and Transcriptomics and Praxis fuer Humangenetik Tuebingen; Tuebingen Germany
4. Division of Pediatric Neurology, Children's Hospital; University of Ulm; Ulm Germany
5. Division for Biochemistry of Joint and Connective Tissue Diseases, Department of Orthopedics; University of Ulm; Ulm Germany