Highly Influential Citations22
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The aim of this guidance is to help producers, users, funders and publishers of evidence understand how and when 'natural experiments' can be used to good effect. While there is growing interest in… Continue Reading
The requirement for those providing healthcare to measure outcomes raises the fundamental question of how these should be measured. Both the scale of the low vision population and the different… Continue Reading
A number of studies have measured the outcomes of low vision care but these have usually been longitudinal case series, thus constituting very low quality of evidence for effectiveness. To date,… Continue Reading
Background Perioperative anaemia is strongly associated with adverse outcomes in cardiac surgery patients but, paradoxically, observational analyses find red cell transfusion to be associated with… Continue Reading