Risk Factors of Ureteral Stricture after Endoscopic Lithotripsy for Impacted Stones: A Case-Control Study.
OBJECTIVES To identify risk factors for ureteral stricture after endoscopic lithotripsy for impacted ureteral stones and to develop and externally validate a machine-learning-based prognostic model. METHODS This multicenter study enrolled patients with impacted ureteral stones in China. During model construction, con...