Catarinucci, Luca
Colella, Riccardo
Mainetti, Luca
Patrono, Luigi
Pieretti, Stefano
Secco, Andrea
Sergi, Ilaria
Article History
Received: 9 October 2013
Accepted: 27 March 2014
First Online: 20 August 2014
Competing interests
: The authors declare no competing financial interests.