Text and Data Mining valid from 2018-06-25
Received: 4 March 2018
Accepted: 18 June 2018
First Online: 25 June 2018
Compliance with ethical standards
: Emanuele F Kauffmann, Niccolò Napoli, Francesca Menonna, Sara Iacopi, Carlo Lombardo, Juri Bernardini, Gabriella Amorese, Andrea Cacciato Insilla, Niccola Funel, Daniela Campani, Carla Cappelli, Davide Caramella, and Ugo Boggi have no conflicts of interest or financial ties to disclose.