1. Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
2. Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, Korea.
3. Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
4. Department of Neurology, Kyung Hee University Hospital at Gangdong, Kyung Hee University School of Medicine, Seoul, Korea.
5. Department of Biological Sciences, Kongju National University, Gongju, Korea.
6. Department of Physics Education, Kongju National University, Gongju, Korea.
7. Stem Cell & Regenerative Medicine Institute, Samsung Medical Center, Seoul, Korea.