- Correspondence to Dr Yong Cheol Lim, Department of Neurosurgery, Ajou University School of Medicine and Graduate School of Medicine, Suwon, Gyeonggi-do 443-721, Korea (the Republic of); ; Dr Joonho Chung, Department of Neurosurgery, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea;
- Received April 26, 2021
- Accepted June 22, 2021
- First published July 27, 2021.
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