1. Department of Molecular Medicine, College of Medicine, Keimyung University, Daegu 42601, Republic of Korea
2. College of Korean Medicine, Daejeon University, Daejeon 34520, Republic of Korea
3. Research Center for Materials Analysis, Korea Basic Science Institute, Daejeon 34133, Republic of Korea
4. Geron Biotech Ltd., Daejeon 34133, Republic of Korea