Fathi, B.A., Elgammal , A.A., Abouelgreed, T.A., Ghoneimy , O.M., Aboelsaad, A.Y. and Alhefnawy , M.A. 2023. The outcomes of flexible ureteroscopy for renal calculi of 2 cm or more with and without the use of ureteral access sheath: A retrospective study. Archivio Italiano di Urologia e Andrologia. 95, 3 (Sep. 2023). DOI:https://doi.org/10.4081/aiua.2023.11524.