1. Department of Pediatric Neurosurgery, Wayne State University School of Medicine, Children's Hospital of Michigan, Detroit, Michigan
2. In-vivo MR-Laboratory, CNS Research Division, Boehringer Ingelheim Pharma KG, Germany
3. Department of Neurosurgery, Medical School Hannover, Hannover, Germany
4. Institute for Medical Informatics, University Hospital Benjamin Franklin, Berlin, Germany
5. International Neuroscience Institute, Hannover, Germany
6. Department of Neurosurgery, Nordstadt Hospital, Hannover, Germany