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Authors
Hara, Kentaro
Kanda, Masato
Kobayashi, Yoshio
Miyamoto, Takashi
Inoue, Takahiro
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Article History
Received: 19 March 2023
Accepted: 5 February 2024
First Online: 14 February 2024
Declarations
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: This multicenter, retrospective, observational study was approved by the Ethics Committee of the Chiba University Hospital (approval no.: 3309). It adhered to the “strengthening the reporting of observational studies in epidemiology” guidelines [CitationRef removed]. A statistical plan was established before data were accessed, and analyses were performed after data collection [CitationRef removed]. The study was performed in accordance with the 1975 Declaration of Helsinki. Owing to the retrospective nature of the study, the requirement for informed consent was waived.
: Not applicable.
: The authors declare that they have no competing interests.
