Text and Data Mining valid from 2019-11-07
Received: 4 July 2019
Accepted: 13 September 2019
First Online: 7 November 2019
Ethics approval and consent to participate
: The Ethics Committee of Institute - Oncology Center, Warsaw, Poland, approved the study protocol. Written informed consent was obtained from all patients enrolled in the investigation.
: Not applicable.
: The authors declare that they have no competing interests.