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Association of IL4R single-nucleotide polymorphisms with rheumatoid nodules in African Americans with rheumatoid arthritis

Paula I Burgos, Zenoria L Causey, Ashutosh Tamhane, James M Kelley, Elizabeth E Brown, Laura B Hughes, Maria I Danila, Amalia van Everdingen, Doyt L Conn, Beth L Jonas, Leigh F Callahan, Edwin A Smith, Richard D Brasington, Larry W Moreland, Désirée M van der Heijde, Graciela S Alarcón and S Louis Bridges*

Arthritis Research & Therapy 2010, 12:R75  doi:10.1186/ar2994

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