Author contributions
MR
MR Suh participated in data analysis and interpretation, and wrote the manuscript. KH Min collected the data and participated in data analysis and interpretation. KH Cho collected the data and helped to draft the manuscript. JW Kim collected the data and performed statistical analysis. IH Lim collected the data and helped to draft the manuscript. MJ Park participated in coordination of the study and helped to draft the manuscript. EM Noh collected the data. My Kim conceived of the study and participated in its design, conducted the clinical trial as PI, wrote and approved the final manuscript.