keywords ANTEGRADE ENDOPYELOTOMY HOLMIUM LASER INTERNAL URETHROTOMY Life Sciences & Biomedicine MALE URETHRAL STRICTURES RETROGRADE ENDOPYELOTOMY Robotics Science & Technology Surgery TERM EFFICACY Technology URETEROPELVIC JUNCTION OBSTRUCTION URETEROVESICAL ANASTOMOTIC STRICTURES URINARY-DIVERSION Urology & Nephrology YAG LASER ENDOURETEROTOMY