1. Department of Neurosurgery, Dong‑A University College of Medicine and Dong‑A Medical Center, Busan 49201, Republic of Korea
2. Department of Marine‑Bio Convergence Science, Pukyong National University, Busan 48547, Republic of Korea
3. Department of Neurosurgery and Medical Research Institute, Pusan National University Hospital and Pusan National University School of Medicine, Busan 49241, Republic of Korea