1. Department of Neurology, Dongguk University Gyeongju Hospital, Gyeongju, Korea.
2. Department of Neurology, Stroke Center, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea.
3. Department of Biostatistics, Korea University College of Medicine, Seoul, Korea.
4. Department of Psychology, Hallym University, Chuncheon, Korea.
5. Department of Neurology, Hallym University College of Medicine, Anyang, Korea.