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Identifying the primary outcome for a randomised controlled trial in rheumatoid arthritis: the role of a discrete choice experiment

Crossref DOI link: https://doi.org/10.1186/s13047-017-0240-3

Published Online: 2017-12-15

Published Print: 2017-01

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

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