Derosa, Giuseppe
Querci, Fabrizio
Franzetti, Ivano
Dario Ragonesi, Pietro
D'Angelo, Angela
Maffioli, Pamela
Article History
Received: 4 November 2014
Revised: 28 February 2015
Accepted: 3 March 2015
First Online: 21 May 2015
Competing interests
: The authors declare no conflict of interest.