- Correspondence to Dr Andrea Farioli, Department of Medical and Surgical Sciences (DIMEC), University of Bologna, UO Medicina del Lavoro – Pad 1, Sant'Orsola Malpighi University Hospital via Palagi 9, 40138 Bologna, Italy ;
- Received October 28, 2016
- Revised January 30, 2017
- Accepted February 6, 2017
- First published March 9, 2017.
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