Text and Data Mining valid from 2019-10-27
Received: 23 April 2019
Accepted: 29 August 2019
First Online: 27 October 2019
Ethics approval and consent to participate
: The study protocol was approved by the Ethical Committee of the Azienda Unità Sanitaria Locale – IRCCS in Reggio Emilia, Italy.
: Not applicable.
: The authors declare that they have no competing intersts.