The new Netflix documentary follows identical twins as they adopt different diets. This is a great example of a twin study – a uniquely useful research tool in science.
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Articles on randomised trials
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Two years ago, the Recovery trial transformed COVID treatments around the world with a landmark finding that may have saved a million lives in just nine months
David Card, Josh Angrist and Guido Imbens pushed economics closer to the traditional sciences with experiments that mimicked the randomised trials in drug tests.
Randomised trials in development have attracted criticiism over ethical issues and questions about being effective for policy.
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Senior Research Fellow, Johannesburg Institute for Advanced Study, University of Johannesburg
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Clinical Research Fellow, University of Oxford
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Lecturer in International Education, University of Sussex
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Clinical Research Fellow, University of Oxford
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Senior lecturer, Economics Department, University of Technology Sydney
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Professor of Economics, University of St Andrews
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Senior Lecturer -- Economics, University of Cape Town
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Senior Clinical Research Fellow, University of Oxford
