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[Comment] Offline: Apostasy against the public health elites

“Epidemiology is built on a history of convincing experiments…We need to get better at using randomised controlled trials as knowledge translation in the public health field”, wrote Anne Cockcroft last year. Who could disagree? The centrality of randomised evidence is firmly established for evaluating interventions and their application in clinical medicine. The same is true in public health. But any clinician or public health practitioner knows that there is more to evidence than the results of a precious randomised trial.