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Authors
Kim, Jinhyun
Jang, Suk-Yong
Park, Eun-Cheol
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Article History
Received: 11 June 2024
Accepted: 21 March 2025
First Online: 31 March 2025
Declarations
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: All procedures were performed in accordance with the relevant guidelines and regulations of the Declaration of Helsinki. The Institutional Review Board (IRB) of Severance Hospital in Seoul, Republic of Korea (IRB No: [4-2024-0367]) approved the study. The IRB, recognizing the sole academic nature of the investigators’ database access and the absence of personally identifiable information utilization, exempted the need for obtaining written informed consent.
: The authors declare no competing interests.
: The Korea National Health Insurance Service-National Sample Cohort (NHIS-NSC) is a public open-access database. It is based on the health insurance claims data of all Koreans, and the sample cohort is available for public purposes and scientific research. The sample cohort data are available after approval for use by the National Health Insurance Service ().
