1. Department of Dermatology Seoul National University Bundang Hospital 82 Gumi‐ro 173 Beon‐gil, Bundang‐gu Seongnam‐si Gyeonggi‐do 13620 Korea
2. Department of Dermatology Ilsan Paik Hospital Inje University 170, Juhwa‐ro, Ilsanseo‐gu Goyang‐si Gyeonggi‐do Korea