2 Department of Dermatology, Kyung Hee University College of Medicine, Kyung Hee University Medical Center, 23 Kyung Hee Dae-ro, Dongdaemun-gu, Seoul, 02447, Korea.
3 Hayannara Dermatology Clinic, Incheon, Korea.
4 Department of Dermatology, Kyung Hee University College of Medicine, Kyung Hee University Medical Center, 23 Kyung Hee Dae-ro, Dongdaemun-gu, Seoul, 02447, Korea. mdfamily@naver.com.