1. Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
2. Neuroscience Center, Samsung Medical Center, Seoul, Korea
3. Samsung Alzheimer Research Center, Samsung Medical Center, Seoul, Korea
4. Department of Laboratory Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
5. Department of Laboratory Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Korea
6. Department of Neurology, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea
7. Department of Neurology, Gyeongsang National University School of Medicine and Gyeongsang National University Changwon Hospital, Changwon, South Korea
8. Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, Korea
9. Department of Clinical Research Design and Evaluation, SAIHST, Sungkyunkwan University, Seoul, Korea