- Correspondence to Dr Michelle Taylor, Current address: School of Social & Community Medicine, Oakfield House, Oakfield Grove, Bristol, BS8 2BN, UK;
- Received 10 October 2016
- Revised 10 March 2017
- Accepted 19 April 2017
- Published online 7 June 2017.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.