Funding for this research was provided by:
National Research Foundation of Korea (2021R1A2C4002195)
Article History
Received: 9 December 2021
Revised: 31 December 2021
Accepted: 19 January 2022
First Online: 1 March 2022
Declarations
:
: The scientific guarantor of this publication is Young Joo Suh.
: The authors of this manuscript declare no relationships with any companies, whose products or services may be related to the subject matter of the article.
: One of the authors has significant statistical expertise.
: Written informed consent was not required because of the nature of our study, which was a study based on research articles.
: Institutional Review Board approval was not required because of the nature of our study, which was a study based on research articles.
: • retrospective• cross-sectional study• performed at one institution