Concetti, Fabio
Carpi, Francesco M
Nabissi, Massimo
Picciolini, Matteo
Santoni, Giorgio
Napolioni, Valerio http://orcid.org/0000-0002-4378-6838
Article History
Received: 2 September 2013
Revised: 18 March 2014
Accepted: 30 April 2014
First Online: 4 June 2014
Competing interests
: The authors declare no conflict of interest.