1. Department of Neurology, Gyeongsang National University College of Medicine, Jinju, Korea.
2. Department of Neurology, Gyeongsang National University Changwon Hospital, Changwon, Korea.
3. Institute of Health Science, Gyeongsang National University College of Medicine, Jinju, Korea.
4. Department of Neurology, Gyeongsang National University Hospital, Jinju, Korea.
5. Department of Neurology, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Korea.