Updates are available Correction dated 2015-09-15
Click to view Correction: https://0-doi-org.brum.beds.ac.uk/10.1186/s12889-015-2162-y
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Authors
McGill, Rory
Anwar, Elspeth
Orton, Lois
Bromley, Helen
Lloyd-Williams, Ffion
O’Flaherty, Martin
Taylor-Robinson, David
Guzman-Castillo, Maria
Gillespie, Duncan
Moreira, Patricia
Allen, Kirk
Hyseni, Lirije
Calder, Nicola
Petticrew, Mark
White, Martin
Whitehead, Margaret
Capewell, Simon
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