Definition: Given an abstract of a paper, generate a title for this paper such that conveys the key focus of the paper.
Input: Abstract: Over a 1-year period, rigid ureteroscopy has been used to retrieve ureteric calculi in 120 patients. The technical details, causes of failure and the complications are described. An initial success rate of 78% was obtained. It was concluded that ureteroscopy should replace blind procedures for the extraction of ureteric stones.

Rigid ureteroscopy for the treatment of ureteric calculi: experience in 120 cases.