1. Institute of Human Genetics, Medical Faculty; RWTH Aachen University; Aachen Germany
2. Division of Neuropediatrics and Social Pediatrics, Department of Pediatrics, Medical Faculty; RWTH Aachen University; Aachen Germany
3. Department of Diagnostic and Interventional Neuroradiology, Medical Faculty; RWTH Aachen University; Aachen Germany
4. Department of Radiology, Radiologie Universität Bonn Ildiko M. Kabat; University Hospital Bonn; Bonn Germany
5. Department of Human Genetics, Medical Center; University of Regensburg; Regensburg Germany