1. Department of Dermatology, CHA Bundang Medical Center, CHA University, Seongnam, Korea.
2. Department of Applied Bioscience, CHA University, Pocheon, Korea.
3. College of Pharmacy, Yonsei University, Incheon, Korea.
4. Stem Cell Research Laboratory, Department of Biomedical Science, CHA Stem Cell Institute, CHA University, Seoul, Korea.
5. Department of Stem Cell Biology, Konkuk University School of Medicine, Seoul, Korea.