Authors’ contributions
DKY, HL
DKY had full access to all the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis. DKY is a senior author. All authors approved the final version of the manuscript before submission. Study concept and design: JK, JL, JGK, and DKY; acquisition, analysis, or interpretation of data: JK and HL; drafting of the manuscript: JK and DKY; critical revision of the manuscript for important intellectual content: all authors; statistical analysis: JK, HL, JL, and DKY; study supervision: DKY. DKY supervised the study and served as the guarantor. The corresponding author attests that all listed authors meet the authorship criteria and that no others meeting the criteria have been omitted. JK and HL contributed equally to this work as first authors. JGK and DKY contributed equally to this work as corresponding authors.