1. Department of Pediatrics, Faculty of Health Sciences, McMaster University, Ontario, Canada,
2. Department of Pediatrics, Faculty of Health Sciences, McMaster University, Ontario, Canada
3. Department of Neurology, Hôpital Universitaire des Enfants Reine Fabiola, Université Libre de Bruxelles, Brussels, Belgium
4. Department of Clinical Neurology, Medical University of Vienna, Austria
5. Gottfried from Preyer's Children's Hospital, Vienna, Austria
6. Documentation Archives of the Austrian Resistance (DOEW), Vienna, Austria