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Authors
Yamashita, Ryo
Nakamura, Masafumi
Notsu, Akifumi
Hashizume, Akihito
Shinsaka, Hideo
Matsuzazki, Masato
Niwakawa, Masashi
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Article History
Received: 13 August 2019
Accepted: 14 November 2019
First Online: 22 November 2019
Compliance with ethical standards
:
: We have no conflicts of interest regarding this article.
: This retrospective single-center study was approved by the ethical review committee of Shizuoka Cancer Center (Number 2255).
: The requirement for informed consent was waived because of the retrospective nature of the study.
