1. From the Department of Neurosurgery and Biomedicine, University Hospital Basel, University of Basel, Switzerland (R.G.)
2. Russell H. Morgan Department of Radiology and Radiological Science, the Johns Hopkins University School of Medicine, Baltimore, MD (M.J., P.W.)
3. Cellular Imaging Section and Vascular Biology Program, Institute for Cell Engineering, the Johns Hopkins University School of Medicine, Baltimore, MD (M.J., P.W.)
4. NeuroRepair Department, Mossakowski Medical Research Centre, Polish Academy of Sciences (M.J.)
5. Department of Neurosurgery, Mossakowski Medical Research Centre, Polish Academy of Sciences, Warsaw, Poland (M.J.)
6. Department of Neurology and Neurosurgery, Faculty of Medical Sciences, University of Warmia and Mazury, Olsztyn, Poland (P.W.).