1. Department of Dermatovenereology; Chengdu Second People's Hospital; Chengdu Sichuan PR China
2. Department of Dermatovenereology; West China Hospital of Sichuan University; Chengdu Sichuan PR China
3. Department of Dermatovenereology; Chengdu Qingbaijiang Distinct People's Hospital; Chengdu Sichuan PR China