title: Reply by the authors.
authors: Mohamed A
authors: MA
authors: Elkoushy
authors: Walid
authors: W
authors: Shahrour
authors: Sero
authors: S
authors: Andonian
mesh_terms: D005471:Fluoroscopy / Q000379:methods*; D006801:Humans; D007669:Kidney Calculi / Q000601:surgery*; D009403:Nephrostomy, Percutaneous; D014514:Ureteral Calculi / Q000601:surgery*