Azzollini, Jacopo
Rovina, Davide
Gervasini, Cristina
Parenti, Ilaria
Fratoni, Alessia
Cubellis, Maria Vittoria
Cerri, Amilcare
Pietrogrande, Luca
Larizza, Lidia
Article History
Received: 10 July 2014
Revised: 3 September 2014
Accepted: 5 September 2014
First Online: 2 October 2014
Competing interests
: The authors declare no conflict of interest.