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Authors
Kadota, Tomohiro
Yoda, Yusuke
Hori, Keisuke
Shinmura, Kensuke
Oono, Yasuhiro
Ikematsu, Hiroaki
Yano, Tomonori
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Article History
Received: 16 December 2019
Accepted: 3 March 2020
First Online: 14 March 2020
Compliance with ethical standards
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: Tomohiro Kadota, Yusuke Yoda, Keisuke Hori, Kensuke Shinmura, Yasuhiro Oono, Hiroaki Ikematsu, and Tomonori Yano have no conflict of interest.
: This study was a single center, retrospective study, and the protocol was approved by the Institutional Review Board of the National Cancer Center (2017-286), performed according to the Epidemiological Study Guideline issued by the Japan Ministry of Health, Labor, and Welfare and the ethical principles of the revised Declaration of Helsinki. All data were collected from medical records. All procedures were carried out after written informed consent was obtained from all patients.
