1. Department of Neurosurgery, Ajou University Medical Center, Suwon-si 16499, Republic of Korea
2. BnH Research Co., Ltd., Goyang-si 10594, Gyeonggi-do, Republic of Korea
3. Department of Physiology, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
4. Department of Neurosurgery, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
5. Department of Physical Medicine & Rehabilitation, College of Medicine, Yeungnam University, Daegu 42415, Republic of Korea