Clivati, Cecilia
Ambrosini, Roberto
Artz, Thomas
Bertarini, Alessandra
Bortolotti, Claudio
Frittelli, Matteo
Levi, Filippo
Mura, Alberto
Maccaferri, Giuseppe
Nanni, Mauro
Negusini, Monia
Perini, Federico
Roma, Mauro
Stagni, Matteo
Zucco, Massimo
Calonico, Davide
Article History
Received: 13 October 2016
Accepted: 13 December 2016
First Online: 1 February 2017
Competing interests
: The authors declare no competing financial interests.