Department of Dermatology Peking University Third Hospital Beijing 100191 China;
Department of Dermatology Peking University Third Hospital Beijing 100191 China;
Department of Dermatology Peking University Third Hospital Beijing 100191 China;
Department of Dermatology Peking University Third Hospital Beijing 100191 China;
Department of Dermatology Peking University Third Hospital Beijing 100191 China;
Research Center of Clinical Epidemiology Peking University Third Hospital Beijing 100191 China;
Research Center of Clinical Epidemiology Peking University Third Hospital Beijing 100191 China;
Department of Dermatology Peking University Third Hospital Beijing 100191 China;