- Correspondence to Professor Fiona A Alderdice, School of Nursing and Midwifery, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK;
- Received July 4, 2013
- Revised March 28, 2014
- Accepted April 2, 2014
- First published May 8, 2014.
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