Received: 20 December 2021
Accepted: 6 June 2022
First Online: 11 July 2022
: This study was conducted in accordance with the international consortium for harmonization good clinical practices (ICH-GCP) and the ethical guidelines for biomedical research. In addition, all methods were performed in accordance with the Helsinki Declaration. The approval for this study was obtained from the institutional ethical committee (Institutional Review Board, National Cancer Center, Korea) before starting the study (NCCCT13676). Written informed consent was obtained from all study participants.
: Not applicable
: The authors declare no conflicts of interest.