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1
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V.Lemmi; H. Kuper and K. Blanchett , et al. International I nitiativ e for Impact E valuation (3ie) (2016) C1
Systematic Review Summary 4
BMJ 2009; 338 doi: https://doi.org/10.1136/bmj.b158 (Published 05 February 2009) Cite this as: BMJ 2009;338:b158 Correspondence to: A Burns alistair.burns@manchester.ac.uk