Text and Data Mining valid from 2019-11-29
Received: 27 February 2019
Accepted: 10 October 2019
First Online: 29 November 2019
Ethics approval and consent to participate
: The study was carried out in conformity with the Declaration of Helsinki of the World Medical Association. All subjects involved consented to the experimental protocol. The institutional ethics committee (Central Ethics Committee, Fondazione Salvatore Maugeri, approval number #680 CEC) specifically approved the study and the consent procedures.
: Not applicable.
: The authors declare that they have no competing interests.