Tanaka, Kazuhiro https://orcid.org/0000-0002-5138-8952
Ogawa, Gakuto
Mizusawa, Junki
Naka, Norifumi
Kawai, Akira
Takahashi, Mitsuru
Hiruma, Toru
Matsumoto, Yoshihiro
Tsuchiya, Hiroyuki
Nakayama, Robert
Hatano, Hiroshi
Emori, Makoto
Hosaka, Masami
Yoshida, Yukihiro
Toguchida, Junya
Abe, Satoshi
Asanuma, Kunihiro
Yokoyama, Ryohei
Hiraga, Hiroaki
Yonemoto, Tsukasa
Morii, Takeshi
Matsumoto, Seiichi
Nagano, Akihito
Yoshikawa, Hideki
Fukuda, Haruhiko
Ozaki, Toshifumi
Iwamoto, Yukihide
Funding for this research was provided by:
National Cancer Center (23-A-16/23-A-20/26-A-4/29-A-3)
Ministry of Health, Labour and Welfare (H14-Gan-033/H17-Gan-006/H26-084)
Article History
Received: 7 February 2018
Accepted: 1 August 2018
First Online: 10 August 2018
Ethics approval and consent to participate
: All procedures performed in this study involving human participants were in accordance with the ethical standards of the institutional committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. This ancillary study plan was included in the JCOG0304 protocol and it was approved by the Clinical Trial Review Committee of JCOG, and also approved by the Institutional Review Boards of each of the 27 participating institutes. All patients gave written informed consent before entry to JCOG0304.
: All patients gave written informed consent before entry to JCOG0304.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.