title: Editorial Comment to Antegrade ultrasound contrast injection facilitates accurate nephrostomy tube positioning during percutaneous nephrolithotomy.
authors.affiliation: Department of Urology, Medical University of Silesia, Zabrze, Poland.
authors.forename: Piotr
authors.initials: P
authors.lastname: Bryniarski
mesh_terms: D006801:Humans; D007669:Kidney Calculi; D059032:Learning Curve; D000074642:Nephrolithotomy, Percutaneous; D009403:Nephrostomy, Percutaneous; D066231:Surgeons