Tateishi, Akiko
Matsumoto, Yuji
Tanaka, Midori
Nakai, Toshiyuki
Sasada, Shinji
Aoshima, Masahiro
Tsuchida, Takaaki
Article History
Received: 23 April 2020
Accepted: 31 August 2020
First Online: 9 September 2020
Ethics approval and consent to participate
: This study was approved by the National Cancer Center Institutional Review Board, and the requirement for informed consent was waived due to the retrospective observational nature (No. 2018–090).
: Not applicable.
: The authors have no conflicts of interest to declare.