Measurement of serum trace elements levels in patients with juvenile idiopathic arthritis Serum calreticulin as a novel biomarker of juvenile idiopathic arthritis disease activity Ultrasonographic findings of the shoulders in Egyptian patients with rheumatoid arthritis Anti‑vinculin antibodies as a novel biomarker in Egyptian patients with systemic sclerosis Correlations between ultrasonographic findings, clinical scores, and depression in patients with knee osteoarthritis Prevalence of lower limb deformities among primary school students Association of rheumatoid arthritis disease activity, severity with electrocardiographic findings, and carotid artery atherosclerosis Serum Cystatin C and βeta2 Microglobulin as potential biomarkers in children with lupus nephritis. Relation between panoramic mandibular index and disease activity in patients with rheumatoid arthritis Relation between panoramic mandibular index and disease activity in patients with rheumatoid arthritis Collagen triple-helix repeat containing 1 (CTHRC1) protein in rheumatoid arthritis patients: Relation to disease clinical, radiographic and ultrasound scores