1. Department of Nursing, Samsung Medical Center, Department of Clinical Nursing Science, Graduate School of Clinical Nursing Science, Sungkyunkwan University, Seoul, Korea.
2. Department of Neurology, Neuroscience Center, Samsung Biomedical Research Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
3. Department of Neurology, Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea.
4. Department of Psychology, Sungshin Women's University, Seoul, Korea.
5. Department of Neurology, Sanbon Hospital, Wonkwang University School of Medicine, Gunpo, Korea.