Author contributions
J.S.R. conceptualized the study. E.G.J. and J.C.L. made substantial contributions at a steering committee for procedures. S.Y.C. made substantial contributions to AKAS analysis. K.H.S., S.Y.L., D.P., B.M.O. and H.G.S. made substantial contributions to enrollment and data collection. J.L. wrote the original draft. J.S.R. reviewed and edited the manuscript. All authors read and approved the final manuscript.