1. Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, Korea
2. Hanyang Biomedical Research Institute, Hanyang University, Seoul, Korea
3. Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA
4. Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
5. Department of Microbiology, College of Medicine, Hanyang University, Seoul, Korea