Barone, C.
Romeo, F.
Pagano, S.
Adamo, M.
Nappi, C.
Sarnelli, E.
Kurth, F.
Iida, K.
Article History
Received: 16 June 2014
Accepted: 31 July 2014
First Online: 22 August 2014
Competing interests
: The authors declare no competing financial interests.