- Correspondence to Dr Giorgio Caretta, Division of Cardiology, Sant'Andrea Hospital, ASL 5 Liguria—Via Vittorio Veneto, 197, La Spezia, 19124, Italy;
- Received March 24, 2016
- Revised July 4, 2016
- Accepted July 10, 2016
- First published July 27, 2016.
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