Storti, P
Marchica, V
Airoldi, I
Donofrio, G
Fiorini, E
Ferri, V
Guasco, D
Todoerti, K
Silbermann, R
Anderson, J L
Zhao, W
Agnelli, L
Bolzoni, M
Martella, E
Mancini, C
Campanini, N
Noonan, D M
Petronini, P G
Neri, A
Aversa, F
Roodman, G D
Giuliani, N
Article History
Received: 23 December 2015
Revised: 22 March 2016
Accepted: 3 May 2016
First Online: 20 May 2016
Competing interests
: The authors declare no conflict of interest.