1. Department of Biomedical Engineering, National Taiwan University, Taipei
2. Clive Chen Clinic, Taichung
3. Department of Physical Medicine & Rehabilitation, Kaohsiung Veterans General Hospital, Kaohsiung
4. Division of Neurosurgery, Department of Surgery, National Taiwan University Hospital, Taipei
5. Department of Neurosurgery, Kaohsiung Veterans General Hospital, Kaohsiung