- Correspondence to Dr Wan C Tan, UBC James Hogg Research Centre, Providence Heart + Lung Institute, University of British Columbia, St Paul's Hospital, Rm 166, 1081 Burrard Street, Vancouver, British Columbia, Canada V6Z 1Y6;
- Received December 20, 2013
- Revised March 3, 2014
- Accepted March 12, 2014
- First published April 4, 2014.
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