- Correspondence to Dr Giuseppe Galati, Istituto di Cardiologia, Policlinico S. Orsola-Malpighi, via Massarenti 9, Bologna 40138, Italy;
- Received June 23, 2014
- Revised July 2, 2014
- Accepted July 3, 2014
- First published July 22, 2014.
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