Hikage, Makoto
Fujiya, Keiichi
Kamiya, Satoshi
Tanizawa, Yutaka
Bando, Etsuro
Notsu, Akifumi
Mori, Keita
Terashima, Masanori
Article History
Accepted: 27 December 2020
First Online: 18 January 2021
Compliance with ethical standards
:
: Dr. Hikage, Fujiya, Kamiya, Tanizawa, Bando, Notsu, and Mori have no conflicts of interest or financial ties to disclose. Dr. Terashima received personal fees from Taiho, Chugai, Ono, Bristol-Myers Squibb, Yakult, Takeda, Eli Lilly, Pfizer, and Daiichi Sankyo, outside the submitted work.
: The present study received approval from the Institutional Review Board of Shizuoka Cancer Center, Shizuoka, Japan.
: The need for informed consent in the present retrospective study was replaced by an informed opt-out approach due to the fact that the analysis used anonymous clinical data.