- Correspondence to Dr Clare Gardiner, School of Nursing & Midwifery, The University of Sheffield, Barber House Annexe, 3a Clarkehouse Road, Sheffield S10 2LA, UK;
- Received October 20, 2015
- Revision received January 27, 2016
- Accepted April 4, 2016
- First published April 26, 2016.
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