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Authors
Hirahara, Naohisa
Muraoka, Hirotaka
Ito, Kotaro
Sawada, Eri
Okada, Shunya
Komatsu, Tomohiro
Kondo, Takumi
Kaneda, Takashi
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Article History
Received: 25 October 2021
Accepted: 28 December 2021
First Online: 13 January 2022
Declarations
:
: I have no financial relationships to disclose.
: This article does not contain any studies with animal subjects performed by the any of the authors.
: We designed and conducted a retrospective cohort study, which was approved by nihon university ethics committee (EC15-12-009-1).
: All procedures followed the guidelines of the Declaration of Helsinki, Ethical Principles for Medical Research Involving Human Subjects.
