Acknowledgement
The authors wish to thank Niina Kolehmainen and Stephan Dombrowski for their helpful comments on a previous version of the manuscript.
Disclosure statement
No potential conflict of interest was reported by the authors.
Funding
FFS is funded by Fuse, the Centre for Translational Research in Public Health, a UKCRC Public Health Research Centre of Excellence. Funding for Fuse from the British Heart Foundation, Cancer Research UK, Economic and Social Research Council, Medical Research Council and the National Institute for Health Research, under the auspices of the UK Clinical Research Collaboration, is gratefully acknowledged.