Arthritis Research & Therapy

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Positive anti-citrullinated protein antibody status and small joint arthritis are consistent predictors of chronic disease in patients with very early arthritis: results from the NOR-VEAC cohort

Maria D Mjaavatten*, Till Uhlig, Anne J Haugen, Halvor Nygaard, Göran Sidenvall, Knut Helgetveit and Tore K Kvien

Arthritis Research & Therapy 2009, 11:R146 doi:10.1186/ar2820

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