1. Department of Pediatric Neurology and Developmental Medicine; Children's Hospital; Tuebingen Germany
2. Children's Hospital and Department of Neuroradiology; Experimental Pediatric Neuroimaging; Tuebingen Germany
3. Department of Neurosurgery; University Hospital; Tuebingen Germany
4. Department of Diagnostic and Interventional Neuroradiology; University Hospital; University of Tübingen; Tuebingen Germany