Updates are available Correction dated 2015-11-17
Click to view Correction: https://doi.org/10.1186/s12889-015-2459-x
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Authors
Pears, Sally
Morton, Katie
Bijker, Maaike
Sutton, Stephen
Hardeman, Wendy
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Article History
Received: 26 September 2014
Accepted: 27 March 2015
First Online: 8 April 2015
