Does previous failed shockwave lithotripsy treatment have an influence on retrograde intrarenal surgery outcome?

Elementary arguments show that a tree or forest is determined (up toisomorphism) by binary matroids defined using the adjacency matrix

Comparison of Retrograde Intrarenal Surgery and Percutaneous Nephrolithotomy Used in the Treatment of 2-4 cm Kidney Stones in Terms of Pain and Need for Additional Analgesics: A Prospective Randomized Study

Purpose: To compare the effects of retrograde intrarenal surgery (RIRS) and percutaneous nephrolithotomy (PNL) on postoperative pain and their differences in terms of the postoperative need for analgesics in the treatment of 2-4 cm kidney stones

Kidney Stone Treatment in the Anomalous Kidney with Retrograde Intrarenal Surgery: A Matched Pair Analysis

Objective: To show our retrograde intrarenal surgery (RIRS) experience in anomalous kidney stones and compare its safety and efficiency with normal kidney stones