Percutaneous nephrolithotomy for isolated calyceal stones: How important is the stone location?
Faruk Özgör, Onur Küçüktopcu, Abdulmuttalip Şimşek, Ömer Sarılar, Murat Binbay, Gökhan Gürbüz
(Urol Res Pract 2015; 41: 171-176) DOI: 10.5152/tud.2015.06787