1. Neurosurgical Unit, Department of Clinical Neurosciences, Division of Neurosurgery, Addenbrooke's Hospital, Cambridge, UK
2. Institute of Biomedical Engineering and Instrumentation, Wroclaw University of Technology, Wroclaw, Poland
3. Baylor College of Medicine, Texas Children's Hospital, Houston, Texas, USA
4. Department of Neurology, University of Freiburg, Freiburg, Germany
5. Australian School of Advanced Medicine, Macquarie University, Sydney, Australia.