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Use of programme theory to understand the differential effects of interventions across socio-economic groups in systematic reviews—a systematic methodology review

Crossref DOI link: https://doi.org/10.1186/s13643-017-0638-9

Published Online: 2017-12-29

Published Print: 2017-12

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

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