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