- Correspondence to Professor Patrizio Lancellotti, Domaine Universitaire du Sart Tilman, Batiment B35 Department of Cardiology, University Hospital, Université de Liège, CHU du Sart Tilman 4000 Liège, Belgium;
- Received September 6, 2017
- Revised October 30, 2017
- Accepted November 15, 2017
- First published December 7, 2017.
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