Cent European J Urol 2015; 68: 197-198 doi: 10.5173/ceju.2015.e100 Editorial referring to the papers: Alkan E, Turan M, Ozkanli O. Combined ureterorenoscopy for ureteral and renal calculi is not associated with adverse outcomes. Cent European J Urol. 2015; 68: 187-192, and: Drake T, Ali A, Somani BK. Feasibility and safety of bilateral same-session flexible ureteroscopy (FURS) for renal and ure...