1 Dermatology Hospital of Shandong First Medical University, Jinan, China; Shandong Provincial Institute of Dermatology and Venereology, Shandong Academy of Medical Sciences, Jinan, China.
2 Dermatology Hospital of Shandong First Medical University, Jinan, China; Shandong Provincial Institute of Dermatology and Venereology, Shandong Academy of Medical Sciences, Jinan, China; The First Clinical Medical College of Shandong University of Traditional Chinese Medicine, Jinan, China.
3 Dermatology Hospital of Shandong First Medical University, Jinan, China; Shandong Provincial Institute of Dermatology and Venereology, Shandong Academy of Medical Sciences, Jinan, China. Electronic address: zhangfuren@hotmail.com.