1. UCLA Brain Injury Research Center, Department of Neurosurgery, David Geffen School of Medicine at UCLA, Los Angeles, California.
2. Brain Research Institute, David Geffen School of Medicine at UCLA, Los Angeles, California.
3. Department of Physical Medicine and Rehabilitation, Cheng Hsin General Hospital, Taipei, Taiwan.
4. Department of Physiology, National Defense Medical Center, Taipei, Taiwan.
5. Neurosurgery Unit, Cambridge Center for Brain Repair, University of Cambridge, Cambridge, United Kingdom.
6. Wolfson Brain Imaging Center, University of Cambridge, Cambridge, United Kingdom.