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Ultrasonography imaging of wrist joints of patients with RA injected with intra-articular anti-TNFα agent (a, c, e) and intra-articular corticosteroid (b, d, f). Both anti-TNFα and corticosteroid treatment determine a progressive reduction of joint effusion (arrow) but reduction of synovial membrane thickness (arrowhead) is more expressed in intra-articular anti-TNFα group.
