Article Text
Letter
The PTPN22 susceptibility risk variant is not associated with the rate of joint destruction in anti-citrullinated protein antibody-positive rheumatoid arthritis
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Footnotes
The first two authors contributed equally.
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Funding The work of AHMvdH-vM is supported by The Netherlands Organisation for Health Research and Development and the Dutch Arthritis Association. The NARAC collection was supported by NIH grants NO1-AR-2-2263 and RO1 AR44422 to PKG.
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Competing interests None.
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Patient consent Obtained.
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Provenance and peer review Not commissioned; externally peer reviewed.