- Correspondence to Dr Sonia Bouri, International Centre for Circulatory Health, National Heart and Lung Institute, Imperial College London, St Mary's Hospital, 59-61 North Wharf Road, London W2 1LA, UK;
- Received May 11, 2013
- Revised July 11, 2013
- Accepted July 12, 2013
- First published July 31, 2013.
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