Artuso, R
Provenzano, A
Mazzinghi, B
Giunti, L
Palazzo, V
Andreucci, E
Blasetti, A
Chiuri, R M
Gianiorio, F E
Mandich, P
Monami, M
Mannucci, E
Giglio, S
Article History
Received: 19 March 2014
Revised: 8 May 2014
Accepted: 4 June 2014
First Online: 22 July 2014
Competing interests
: The authors declare no conflict of interest.