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Authors
Matsumoto, Naomi https://orcid.org/0000-0002-9980-6092
Mitsui, Takashi
Kadowaki, Tomoka
Mitsuhashi, Toshiharu
Hirota, Tomoya
Masuyama, Hisashi
Yorifuji, Takashi
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Funding
Funding for this research was provided by:
JSPS KAKENHI (JP23K16329)
Okayama University
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Article History
Received: 9 September 2024
Revised: 6 November 2024
Accepted: 11 November 2024
First Online: 18 November 2024
Declarations
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: This study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by the Institutional Review Board of the Graduate School of Biomedical Sciences, Okayama University (No. 2310–018), and the Clinical Research Management and Review Committee of the Japan Society of Obstetrics and Gynecology (No. 150).
: Patient consent was waived for this study as it utilized secondary data from national surveys and databases managed by relevant authorities and obstetrics and gynecology societies. All data used were anonymized and collected in accordance with applicable ethical guidelines and regulations.
: The authors declare no competing interests.
