Author contribution statement
J. Shim had full access to all data in this study and takes responsibility for data integrity and analytical accuracy. Concept and design of the study was made by Y. G. Kim, J. Shim, and Y. H. Kim. Data analysis and interpretation was performed by Y. G. Kim, K. Y. Boo, D. Y. Kim, K. N. Lee, and J. I. Choi. Drafting article was done by Y. G. Kim. Statistical analysis was performed by Y. G. Kim. Data collection was performed by Y. G. Kim, K. Y. Boo, D. Y. Kim, J. I. Choi, and Y. H. Kim.
Funding source: This work was supported by a grant from Korea University Anam Hospital, Seoul, Republic of Korea (grant No. K1922851).
Competing interest statement: The authors have nothing to disclose