Colicchia, V
Petroni, M
Guarguaglini, G
Sardina, F
SahĂșn-Roncero, M
Carbonari, M
Ricci, B
Heil, C
Capalbo, C
Belardinilli, F
Coppa, A
Peruzzi, G
Screpanti, I
Lavia, P
Gulino, A
Giannini, G
Article History
Received: 9 June 2016
Revised: 5 December 2016
Accepted: 11 January 2017
First Online: 10 April 2017
Competing interests
: The authors declare no conflict of interest.