[1
]
Department of Public Health and Policy, Institute of Psychology, Health and Society,
University of Liverpool, Whelan Building, Liverpool L69 3GB, United Kingdom. Electronic
address: mmw@liverpool.ac.uk.
[2
]
Department of Public Health and Policy, Institute of Psychology, Health and Society,
University of Liverpool, Whelan Building, Liverpool L69 3GB, United Kingdom. Electronic
address: ajpenn@liverpool.ac.uk.
[3
]
Department of Public Health and Policy, Institute of Psychology, Health and Society,
University of Liverpool, Whelan Building, Liverpool L69 3GB, United Kingdom. Electronic
address: lorton@liverpool.ac.uk.
[4
]
Department of Public Health and Policy, Institute of Psychology, Health and Society,
University of Liverpool, Whelan Building, Liverpool L69 3GB, United Kingdom. Electronic
address: shilpan@liverpool.ac.uk.
[5
]
Department of Social & Environmental Health Research, Faculty of Public Health & Policy,
London School of Hygiene and Tropical Medicine, 15-17 Tavistock Place, London WC1H
9SH, United Kingdom. Electronic address: Mark.Petticrew@lshtm.ac.uk.
[6
]
Centre for Reviews and Dissemination, University of York, Heslington, York YO10 5DD,
United Kingdom. Electronic address: amanda.sowden@york.ac.uk.
[7
]
UKCRC Centre for Diet and Activity Research, MRC Epidemiology Unit, University of
Cambridge School of Clinical Medicine, Box 285 Institute of Metabolic Science, Cambridge
Biomedical Campus, Cambridge CB2 0QQ, United Kingdom. Electronic address: Martin.White@mrc-epid.cam.ac.uk.