Ferri, Lorenzo
Donati, Maria A
Funghini, Silvia
Cavicchi, Catia
Pensato, Viviana
Gellera, Cinzia
Natacci, Federica
Spaccini, Luigina
Gasperini, Serena
Vaz, Frédéric M
Cooper, David N
Guerrini, Renzo
Morrone, Amelia
Article History
Received: 7 August 2014
Revised: 6 February 2015
Accepted: 17 February 2015
First Online: 18 March 2015
Competing interests
: The authors declare no conflict of interest.