Department of Nursing Zhujiang Hospital Southern Medical University Guangzhou China;
Department of Rheumatology and Immunology The Third Affiliated Hospital of Southern Medical University Guangzhou China;
Department of Nursing Zhujiang Hospital Southern Medical University Guangzhou China;
Department of Rheumatology and Immunology The Third Affiliated Hospital of Southern Medical University Guangzhou China;
Department of Nursing Zhujiang Hospital Southern Medical University Guangzhou China;
Axial spondyloarthritis; Pain; Patients; Vitamin D deficiency;