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Clinical correlations with Porphyromonas gingivalis antibody responses in patients with early rheumatoid arthritis

Sheila L Arvikar*, Deborah S Collier, Mark C Fisher, Sebastian Unizony, George L Cohen, Gail McHugh, Toshihisa Kawai, Klemen Strle and Allen C Steere

Arthritis Research & Therapy 2013, 15:R109  doi:10.1186/ar4289