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An external validation study reporting poor correlation between the claims-based index for rheumatoid arthritis severity and the disease activity score

Crossref DOI link: https://doi.org/10.1186/s13075-015-0599-0

Published Online: 2015-04-13

Published Print: 2015-12

Update policy: https://doi.org/10.1007/springer_crossmark_policy

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