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Periodontitis in established rheumatoid arthritis patients: a cross-sectional clinical, microbiological and serological study

Menke de Smit*, Johanna Westra, Arjan Vissink, Berber Doornbos-van der Meer, Elisabeth Brouwer and Arie Jan van Winkelhoff

Arthritis Research & Therapy 2012, 14:R222  doi:10.1186/ar4061

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