About the Authors
- George Davey Smith
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*To whom correspondence should be addressed. E-mail: george.davey-smith@bristol.ac.uk
Affiliations Department of Social Medicine, University of Bristol, Bristol, United Kingdom , Medical Research Council Centre for Causal Analyses in Translational Epidemiology, University of Bristol, Bristol, United Kingdom
- Debbie A Lawlor
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Affiliations Department of Social Medicine, University of Bristol, Bristol, United Kingdom , Medical Research Council Centre for Causal Analyses in Translational Epidemiology, University of Bristol, Bristol, United Kingdom
- Roger Harbord
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Affiliation Department of Social Medicine, University of Bristol, Bristol, United Kingdom
- Nic Timpson
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Affiliations Department of Social Medicine, University of Bristol, Bristol, United Kingdom , Medical Research Council Centre for Causal Analyses in Translational Epidemiology, University of Bristol, Bristol, United Kingdom
- Ian Day
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Affiliations Department of Social Medicine, University of Bristol, Bristol, United Kingdom , Medical Research Council Centre for Causal Analyses in Translational Epidemiology, University of Bristol, Bristol, United Kingdom
- Shah Ebrahim
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Affiliation Department of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
GDS, SE, and ID designed the study. DAL and RH analyzed the data. DAL and SE enrolled patients. GDS, DAL, RH, NT, ID, and SE contributed to writing the paper.