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Authors
Nakai, Ryosuke
Fujioka, Tao https://orcid.org/0000-0001-6341-7901
Okamura, Kenichi
Suzuki, Toshihiko
Nakao, Atsushi
Kobayashi, Jotaro
Tsuchiya, Keiji
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Article History
Received: 7 September 2020
Accepted: 5 January 2021
First Online: 29 January 2021
Compliance with Ethical Standards
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: The authors have no conflicts of interest to disclose concerning the present study.
: This retrospective study was approved by the Institutional Ethical Committee for clinical research.
: The requirement for written informed consent was waived due to the retrospective design of the study.
