Di Matteo, A
Franceschini, M
Paiardini, A
Grottesi, A
Chiarella, S
Rocchio, S
Di Natale, C
Marasco, D
Vitagliano, L
Travaglini-Allocatelli, C
Federici, L
Article History
Received: 10 February 2017
Revised: 17 July 2017
Accepted: 19 July 2017
First Online: 18 September 2017
Competing interests
: The authors declare no conflict of interest.