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Matrix to predict rapid radiographic progression of early rheumatoid arthritis patients from the community treated with methotrexate or leflunomide: results from the ESPOIR cohort

Bruno Fautrel*, Benjamin Granger, Bernard Combe, Alain Saraux, Francis Guillemin and Xavier Le Loet

Arthritis Research & Therapy 2012, 14:R249  doi:10.1186/ar4092