1. Department of Radiology, Sengkang General Hospital, Singapore.
2. Department of Diagnostic Radiology, Singapore General Hospital, Singapore.
3. Educational Development, Office of Medical Education, Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore.
4. Department of Neurology, National Neuroscience Institute, Singapore.
5. Duke-NUS Medical School, Singapore.
6. Department of Neuroradiology, National Neuroscience Institute, Singapore.