About the Authors

Miles D. Witham

m.witham@dundee.ac.uk

Affiliation Ageing and Health, University of Dundee, Dundee, Scotland

Peter T. Donnan

Affiliation Dundee Epidemiology and Biostatistics Unit, University of Dundee, Dundee, Scotland

Thenmalar Vadiveloo

Affiliation Dundee Epidemiology and Biostatistics Unit, University of Dundee, Dundee, Scotland

Falko F. Sniehotta

Affiliation Department of Health Psychology, University of Newcastle, Newcastle upon Tyne, England

Iain K. Crombie

Affiliation Department of Public Health, University of Dundee, Dundee, Scotland

Zhiqiang Feng

Affiliation Department of Geography and Sustainable Development, University of St Andrews, St Andrews, Scotland

Marion E. T. McMurdo

Affiliation Ageing and Health, University of Dundee, Dundee, Scotland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: METM MDW IKC FFS PTD. Performed the experiments: TV MDW. Analyzed the data: TV MDW. Wrote the paper: MDW PTD ZF TV IKC METM FFS. Supervised and monitored study progress: METM MDW IKC FFS PTD.