1. Institute of Human Genetics; Jena University Hospital; Jena Germany
2. Department of Neuropaediatrics; Hospital Barmherzige Schwestern Linz; Linz Austria
3. Department of Orthopaedics; Medical University Vienna; Vienna Austria
4. Institute of Human Genetics; Helmholtz Zentrum München−German Research Center for Environmental Health; Neuherberg Germany
5. Institute for Human Genetics; Technical University Munich; Munich Germany
6. Department of Paediatric Orthopedics; Orthopaedical Hospital Speising; Vienna Austria