1. Department of Neurology, Haeundae Paik Hospital Inje University College of Medicine Busan Republic of Korea
2. Department of Radiology, Haeundae Paik Hospital Inje University College of Medicine Busan Republic of Korea
3. Department of Neurology, Chung‐Ang University Hospital Chung‐Ang University College of Medicine Seoul Republic of Korea
4. Department of Neurosurgery, Haeundae Paik Hospital Inje University College of Medicine Busan Republic of Korea