title: How policy informs the evidence.
authors.forename: G
authors.initials: G
authors.lastname: Davey Smith
authors.forename: S
authors.initials: S
authors.lastname: Ebrahim
authors.forename: S
authors.initials: S
authors.lastname: Frankel
mesh_terms: D019317:Evidence-Based Medicine; D006291:Health Policy; D006302:Health Services Research / Q000379:methods*; D006304:Health Status; D006801:Humans; D011634:Public Health; D012959:Socioeconomic Factors; D006113:United Kingdom