1. Cambridge Brain Tumor Imaging Laboratory, Division of Neurosurgery,
2. Wolfson Brain Imaging Centre, Department of Clinical Neuroscience, and
3. Department of Neurosurgery, Chang Gung Memorial Hospital, Keelung;
4. Chang Gung University College of Medicine, Taoyuan, Taiwan; and
5. Department of Radiology, University of Cambridge, Addenbrooke's Hospital, Cambridge, United Kingdom;
6. Department of Radiology, University Medical Centre Groningen, University of Groningen, The Netherlands