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Correction to: Sample size estimation for randomised controlled trials with repeated assessment of patient-reported outcomes: what correlation between baseline and follow-up outcomes should we assume?

Crossref DOI link: https://doi.org/10.1186/s13063-019-3732-6

Published Online: 2019-10-28

Published Print: 2019-12

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

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