1. Department of Stem Cell Biology, School of Medicine, Konkuk University, Seoul 05029, Korea
2. Center for Stem Cell Research, Institute of Advanced Biomedical Science, Konkuk University, Seoul 05029, Korea
3. Department of Medicine, College of Medicine, Chung-Ang University, Seoul 06974, Korea
4. KU Open-Innovation Center, Institute of Biomedical Science and Technology, Konkuk University, Seoul 05029, Korea
5. Department of Pediatrics, College of Medicine, Chung-Ang University, Seoul 06973, Korea
6. Department of Obstetrics and Gynecology, School of Medicine, Konkuk University, Seoul 05030, Korea
7. Research Institute of Medical Science, Konkuk University, Seoul 05029, Korea