1. Department of Cosmetic Laser Surgery, Hospital of Dermatology, Peking Union Medical College (PUMC) Chinese Academy of Medical Sciences (CAMS) Jiangwangmiao Street 12, Xuanwu District Nanjing Jiangsu 210042 China
2. Division of Sexually Transmitted Disease Epidemiology, Hospital of Dermatology, Peking Union Medical College (PUMC) Chinese Academy of Medical Sciences (CAMS) Jiangwangmiao Street 12, Xuanwu District Nanjing Jiangsu 210042 China
3. Department of Pathology, Hospital of Dermatology, Peking Union Medical College (PUMC) Chinese Academy of Medical Sciences (CAMS) Jiangwangmiao Street 12, Xuanwu District Nanjing Jiangsu 210042 China
4. Department of Dermatologic Surgery, Hospital of Dermatology, Peking Union Medical College (PUMC) Chinese Academy of Medical Sciences (CAMS) Jiangwangmiao Street 12, Xuanwu District Nanjing Jiangsu 210042 China