1. Division of Pediatric Neurosurgery, University Hospital Innsbruck, Innsbruck, Austria
2. Departments of Anesthesiology, University Hospital Innsbruck, Innsbruck, Austria
3. New York University Medical Center, New York, New York; Department of Neurosurgery
4. Hadassah University Hospital, Jerusalem, Israel; and Department of Neurology, University Hospital Innsbruck, Innsbruck, Austria
5. Division of Pediatric Neurosurgery, Environmental Medicine