1 Department of Dermatology, Presbyterian Medical Center, Jeonju, Korea.
2 Department of Dermatology, Jeonbuk National University Medical School, Jeonju, Korea.
3 Department of Dermatology, Wonkwang University School of Medicine, Iksan, Korea.
4 Research Institute of Clinical Medicine of Jeonbuk National University, Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, Korea.