1 Department of Dermatology, First Affiliated Hospital of Xi'an Jiaotong University, No. 277 West Yanta Road, Xi'an, 710061, Shaanxi, China.
2 Department of Dermatology, Sanzhang Town Health Center, Linwei District, Weinan, Shaanxi, China.
3 Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong, China.
4 Basic Medical Experiment Teaching Center, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi, China.
5 Department of Dermatology, First Affiliated Hospital of Xi'an Jiaotong University, No. 277 West Yanta Road, Xi'an, 710061, Shaanxi, China. muxin0510@163.com.