SONG, P.- ZE; WU, N.; HUO, C.; WANG, X.- MING. Correlation analysis and clinical significance of Musculoskeletal Ultrasound semi-quantitative grading with bone salt metabolism, Rheumatoid factor and Erythrocyte Sedimentation rate in patients with Rheumatoid Arthritis. Pakistan Journal of Medical Sciences, v. 39, n. 6, 22 Sep. 2023.