Ricci, F
Parravano, M
Regine, F
Sciamanna, M
Tedeschi, M
Missiroli, F
Varano, M
Article History
Received: 15 November 2015
Accepted: 25 February 2016
First Online: 27 May 2016
Competing interests
: FR, MP, and MV reports personal fees from Allergan, personal fees from Bayer, personal fees from Novartis, outside the submitted work. The remaining authors declare no conflict of interest.