1. Department of Pediatrics and Pediatric Neurology, University Medical Center, Georg August University Göttingen, Germany
2. Department of Pediatrics I, Division of Pediatric Neurology, Medical University Innsbruck, Austria
3. Department of General Pediatrics and Neonatology, Heinrich-Heine-University Düsseldorf, Germany
4. Department of Pediatrics, Medical University of Vienna, Austria
5. Hospital for Children and Adolescents, Department of Pediatrics, Klinikum Dritter Orden München, Germany
6. Clinical Department of Neurology, Innsbruck Medical University, Austria