Correspondence to Dr Igho J Onakpoya, Nuffield Department of Primary Care Health Sciences, University of Oxford, Centre for Evidence-Based Medicine, Oxford OX2 6GG ...

Objectives Systematic reviews and meta-analyses are the foundation of modern evidence-based medicine and their use is becoming more prolific than randomised trials. However, systematic reviews are ...

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As a heart surgeon, you regularly perform aortic valve replacement, using a median sternotomy technique. However, you are aware that less-invasive options are available, and you wonder whether these ...