1. Institute of Human Genetics; University of Bonn; Bonn Germany
2. Institut für Humangenetik; Universitätsklinikum Essen; Universität Duisburg-Essen; Essen Germany
3. Institute of Human Genetics; Medical Faculty; Heinrich-Heine-University; Düsseldorf Germany
4. Nottingham Clinical Genetics Service; Nottingham University Hospitals NHS Trust; City Hospital Campus; Nottingham United Kingdom
5. Medical Genetics Unit; University of Siena; Siena Italy
6. Department of Radiology; University of Bonn; Bonn Germany
7. Institute of Human Genetics; Helmholtz Zentrum München; Neuherberg Germany
8. Laboratory of Medical Genetics; Hôpital Jeanne de Flandre University Hospital; Lille France
9. Clinical Genetics; Hôpital Jeanne de France University Hospital; Lille France