1. Ningxia Medical University, Ningxia, China
2. Department of Rheumatology, General Hospital of Ningxia Medical University and Shenzhen Hospital of Integrated Traditional and Western Medicine, Shenzhen, Guangdong, China
3. Health Management Center, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
4. Department of Rheumatology, Shenzhen Hospital of Integrated Traditional and Western Medicine, Guangdong, China