Boulalas, I., De Dominicis, M. and Defidio, L. (2018) “Semirigid ureteroscopy prior retrograde intrarenal surgery (RIRS) helps to select the right ureteral access sheath”, Archivio Italiano di Urologia e Andrologia, 90(1), pp. 20-24. doi: 10.4081/aiua.2018.1.20.