- Correspondence to Ms Natalie Lois Edelman, Centre for Health Research, University of Brighton, Room 262 Mayfield House, Village Way, Falmer, East Sussex BN1 9PH, UK;
- Received October 9, 2012
- Revised December 13, 2012
- Accepted December 17, 2012
- First published January 24, 2013.
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