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Serum etanercept concentrations in relation to disease activity and treatment response assessed by ultrasound, biomarkers and clinical disease activity scores: results from a prospective observational study of patients with rheumatoid arthritis

Crossref DOI link: https://doi.org/10.1136/rmdopen-2021-001985

Published Online: 2021-12-15

Published Print: 2021-12

Update policy: https://doi.org/10.1136/crossmarkpolicy

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