Guidance for evidence-informed policies about health systems: assessing how much confidence to place in the research evidence.

Lewin, Simon; Bosch-Capblanch, Xavier; Oliver, Sandy; Akl, Elie A; Vist, Gunn E; Lavis, John N; Ghersi, Davina; Røttingen, John-Arne et al. · PLoS Med · 2012

review · Level V

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Abstract

In the third paper in a three-part series on health systems guidance, Simon Lewin and colleagues explore the challenge of assessing how much confidence to place in evidence on health systems interventions.

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