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Percentage stone clearance rates for patients with renal calculi treated with URS in regards to stone size and position
| Renal pelvis (%) | Lower pole (%) | Interpolar (%) | Upper pole (%) | Total | |
|---|---|---|---|---|---|
| 5–10 mm | 60 (6/10) | 83 (19/23) | 100 (4/4) | 67 (4/6) | 77 |
| > 10 mm | 25 (2/8) | 75 (3/4) | 0 (0/1) | 0 (0/1) | 36 |
| Total | 44 | 81 | 80 | 57 |
