Published on in Vol 17 , No 10 (2015) :October

1 Faculty of Health Sciences, University of Southampton, Southampton, GB
2 Department of Psychology, Faculty of Social and Human Sciences, University of Southampton, Southampton, GB
3 Primary Care and Population Sciences, Faculty of Medicine, University of Southampton, Southampton, GB
4 Research Department of Primary Care and Population Health, University College London, London, GB
5 Nutrition and Metabolism, Faculty of Medicine, University of Southampton, Southampton, GB
6 Southampton National Institute for Health Research, Biomedical Research Centre, University Hospital Southampton, Southampton, GB
7 Ludwig Boltzmann Institute of Health Promotion Research, Vienna, AT
8 Centre for Evidence-based Healthcare, University Hospital Carl Gustav Carus, Technical University Dresden, Dresden, DE
9 UCD School of Business, University College Dublin, Dublin, IE
10 Division of General Internal Medicine at San Francisco General Hospital, University of California, San Francisco, CA, US
11 Office of the Vice-Chancellor, University of Southampton, Southampton, GB
*these authors contributed equally