Maggi, Claudio
Saglimbeni, Filippo
Dipalo, Michele http://orcid.org/0000-0002-1823-8231
De Angelis, Francesco
Di Leonardo, Roberto
Article History
Received: 20 March 2015
Accepted: 18 June 2015
First Online: 29 July 2015
Competing interests
: The authors declare no competing financial interests.