title: Recent development for pyeloureteroscopy: guide tube method for its introduction into the ureter.
mesh_terms: D020684:Cystoscopes; D019723:Endoscopes; D005336:Fiber Optic Technology; D006801:Humans; D007440:Intubation; D007669:Kidney Calculi / Q000175:diagnosis; D007680:Kidney Neoplasms / Q000175:diagnosis; D007682:Kidney Pelvis; D008722:Methods; D014513:Ureter; D014514:Ureteral Calculi / Q000175:diagnosis