1. Department of Pediatrics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
2. Department of Pathology and Anatomical Sciences, University of Missouri School of Medicine, Columbia, Missouri, United States
3. Department of Pediatrics, Paracelsus Medical University, Nuremberg, Germany
4. Department of Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
5. Division of Medical Genetics, Department of Pediatrics, Washington University School of Medicine, St. Louis, Missouri, United States
6. Divisions of Developmental and Genetic Medicine, Department of Pediatrics, University of Washington and Seattle Children's Hospital, Seattle, Washington, United States
7. Department of Pediatric Neurology, University Children's Hospital, Zurich, Switzerland
8. Section of Pediatric Neuroradiology, Division of Pediatric Radiology, Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, Maryland, United States