title: Retrograde renal pelvic access sheath to facilitate flexible ureteroscopic lithotripsy for the treatment of urolithiasis in a horseshoe kidney.
authors.affiliation: Department of Surgery, Division of Urologic Surgery and Department of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA.
authors.forename: C
authors.initials: C
authors.lastname: Andreoni
authors.forename: A J
authors.initials: AJ
authors.lastname: Portis
authors.forename: R V
authors.initials: RV
authors.lastname: Clayman
mesh_terms: D006801:Humans; D007668:Kidney / Q000002:abnormalities*; D007682:Kidney Pelvis; D008096:Lithotripsy / Q000379:methods*; D008297:Male; D008875:Middle Aged; D018666:Ureteroscopy / Q000379:methods*; D014545:Urinary Calculi / Q000628:therapy*