title: Systematic reviews and Cochrane collaboration. Cochrane library is now available free to people working in NHS.
authors.forename: D M
authors.initials: DM
authors.lastname: Mackay
mesh_terms: D004739:England; D019317:Evidence-Based Medicine; D006282:Health Personnel; D016247:Information Storage and Retrieval; D007993:Libraries, Medical; D013222:State Medicine