1 Department of Dermatology, SMG-SNU Boramae Medical Center, Seoul, Korea.
2 Department of Dermatology, SMG-SNU Boramae Medical Center, Seoul, Korea. ; Laboratory of Cutaneous Aging and Hair Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea. ; Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul, Korea.