title: Editorial comment.
authors.forename: Kun Suk
authors.initials: KS
authors.lastname: Kim
mesh_terms: D005260:Female; D006801:Humans; D007668:Kidney / Q000503:physiopathology*; D007682:Kidney Pelvis / Q000601:surgery*; D008297:Male; D014517:Ureteral Obstruction / Q000601:surgery*