Received: 15 June 2020
Accepted: 1 December 2020
First Online: 5 January 2021
Ethics approval and consent to participate
: The study was approved by the Ethics Committee of Veneto Institute of Oncology (approval No. CESC-IOV 2011/17) on 03 February 2015. All procedures performed in studies involving human participants were in accordance with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Written informed consent was obtained from all individual participants included in the study.
: Not applicable.
: The authors declare that they have no competing interests.