1 Department of Dermatology, School of Medicine, Pusan National University, Yangsan, Korea.
2 Department of Dermatology, School of Medicine, Pusan National University, Yangsan, Korea; Biomedical Research Institute, Pusan National University Hospital, Busan, Korea.
3 Department of Dermatology, School of Medicine, Pusan National University, Yangsan, Korea; Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Busan, Korea. Electronic address: hcko@pusan.ac.kr.