Tsuda, Yusuke http://orcid.org/0000-0002-2404-7714
Ogura, Koichi
Shinoda, Yusuke
Kobayashi, Hiroshi
Tanaka, Sakae
Kawai, Akira
Funding for this research was provided by:
National Cancer Center Research and Development Fund (28-A-16)
Article History
Received: 26 December 2017
Accepted: 8 May 2018
First Online: 31 May 2018
Ethics approval and consent to participate
: Approval for the present study was obtained from the Institutional Review Board of the JOA. The requirement for informed consent was waived because of the anonymous nature of the data.
: The authors declare that they have no competing interests.
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