1. Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea.
2. Laboratory of Cutaneous Aging Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea.
3. Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul, Korea.
4. Department of Dermatology, SMG-SNU Boramae Medical Center, Seoul, Korea.
5. SNU Institute on Aging, Seoul, Korea.