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Authors
Okada, Shunya
Ito, Kotaro
Muraoka, Hirotaka
Hirahara, Naohisa
Itakura, Go
Ichiki, Shungo
Komatsu, Tomohiro
Kondo, Takumi
Kaneda, Takashi
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Article History
Received: 27 June 2021
Accepted: 24 August 2021
First Online: 9 September 2021
Declarations
:
: The authors declare that they have no conflict of interest.
: We designed and conducted a retrospective cohort study, which was approved by nihon university ethics committee (EC19-011).
: The requirement to obtain written informed consent was waived for this retrospective study. All procedures followed the guidelines of the Declaration of Helsinki, Ethical Principles for Medical Research Involving Human Subjects.
: This article does not contain any studies with animal subjects performed by the any of the authors.
