Author contributions
Jung YK: Acquisition of data, critical revision of manuscript. Kim CL: Analysis and interpretation of data and writing of manuscript. Jeong MA: Study conception and design, critical revision of manuscript. Sung JM: Analysis and interpretation of data. Lee KG: Provision of study patients and technical editing of the manuscript. Kim NY: Acquisition of data. Kang L: Visualization tasks of data. Lim H: Study conception and design, analysis, and interpretation of data, drafting of manuscript. All authors reviewed the manuscript. The authors read and approved the final manuscript.