1. Department of Neuroscience College of Medicine Chungbuk National University Cheongju Korea
2. Department of Neurosurgery Chungbuk National University Hospital Cheongju Korea
3. Department of Anesthesiology Chungbuk National University Hospital Cheongju Korea
4. Charm Pain Clinic Cheongju Korea
5. Institute for Stem cell & Regenerative Medicine (ISCRM) Chungbuk National University Cheongju Korea