Jeong, Sung Hoon
Lee, Hyeon Ji
Yun, Choa
Yun, Il
Jung, Yun Hwa
Kim, Soo Young
Lee, Hee Seung
Jang, Sung-In
Funding for this research was provided by:
Ministry of Health & Welfare, Republic of Korea (HI20C1130)
Article History
Received: 19 May 2022
Accepted: 19 August 2022
First Online: 27 August 2022
Declarations
:
: We assert that all procedures contributing to this work comply with the ethical standards of the relevant national and institutional committees on human experimentation and with the Helsinki Declaration of 1975, as revised in 2008. As the NHIS-NSC data is anonymized, the study was approved as exempt by the Institutional Review Board of Yonsei University’s Health System (4–2021–1211). Since we used the anonymized data, the need for informed consent was waived by the Institutional Review Board of Yonsei University’s Health System (4–2021–1211).
: Not applicable.
: The authors declare that they have no competing interests.