Text and Data Mining valid from 2019-08-29
Received: 30 May 2019
Accepted: 22 August 2019
First Online: 29 August 2019
Ethics approval and consent to participate
: The study was approved by the Institutional Board of National Cancer Institute “G. Pascale” – IRCCS - of Napoli Italy and all patients gave consent to participate.
: Not applicable.
: The authors declare that they have no competing interests.