- Correspondence to Dr Judith A A E Cuypers, Department of Cardiology, Erasmus University Medical Center, Thoraxcenter, Room BA 308, s'Gravendijkwal 230, Rotterdam 3015 CE, The Netherlands;
- Received May 3, 2013
- Revised July 4, 2013
- Accepted July 9, 2013
- First published July 25, 2013.
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