Figure 3.

Erosion and joint space narrowing scores of MCP and PIP joints at Inclusion and follow-up. Erosion and joint space narrowing scores of the metacarpophalangeal (MCP) and proximal interphalangeal (PIP) joints of the hands (means and 95% confidence interval [CI]) at inclusion and at 2 and 4 years follow-up in rheumatoid arthritis patients with anti-cyclic-citrullinated peptide antibodies. L, left; R, right.

van der Helm-van Mil et al. Arthritis Research & Therapy 2005 7:R949-R958   doi:10.1186/ar1767
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