- Correspondence to Dr Carwyn Rhys Hooper, St George's, University of London, Centre for Medical & Healthcare Education, 4th Floor Hunter Wing, Cranmer Terrace, Tooting, London SW17 ORE, UK;
- Received January 28, 2010
- Revised May 26, 2010
- Accepted June 13, 2010
- First published July 31, 2010.
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