1. Department of Rheumatology and Immunology, West China Hospital of Sichuan University/West China School of Nursing, Sichuan University, Chengdu, Sichuan Province, China
2. Department of Rheumatology and Immunology, West China Hospital of Sichuan University, Chengdu, Sichuan Province, China
3. West China School of Nursing/West China Hospital, Sichuan University, Chengdu, Sichuan Province, China.