- Correspondence to Professor Giuseppe Boriani, Department of Experimental, Diagnostic and Specialty Medicine, Institute of Cardiology, University of Bologna, Policlinico S.Orsola-Malpighi, Via Massarenti n. 9, Bologna 40138, Italy;
- Received February 3, 2015
- Revised April 2, 2015
- Accepted April 17, 2015
- First published May 22, 2015.
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