1 Department of Dermatology and Venereology, Rare Diseases Center, West China Hospital of Sichuan University, No. 37 Guoxue Alley, Wuhou District, Chengdu, 610041, Sichuan, People's Republic of China.
2 West China School of Nursing, Sichuan University, No. 37 Guoxue Alley, Wuhou District, Chengdu, 610041, Sichuan, People's Republic of China.
3 Department of Public Health and Primary Care, University of Cambridge, Cambridge, Cambridgeshire, UK.
4 Department of Dermatology and Venereology, Rare Diseases Center, West China Hospital of Sichuan University, No. 37 Guoxue Alley, Wuhou District, Chengdu, 610041, Sichuan, People's Republic of China. [email protected].