Mitsuya, Koichi http://orcid.org/0000-0001-8956-5427
Nakasu, Yoko
Deguchi, Shoichi
Shirata, Kensei
Asakura, Koiku
Nakashima, Kazuaki
Endo, Masahiro
Takahashi, Toshiaki
Hayashi, Nakamasa
Article History
Received: 28 June 2020
Accepted: 11 November 2020
First Online: 23 November 2020
Ethics approval and consent to participate
: Approval for this study was obtained from ethical review board of Shizuoka Cancer Center. Individual written informed consent was waived because this study was retrospective in design and based on database extracted records. The waivers of participant consent were approved by the ethical review boards of Shizuoka Cancer Center.
: Not applicable.
: The authors declare that they have no competing interests.