Anovelspherical-headedfascialdilatorisfeasibleforsecond-stageultrasoundguidedpercutaneousnephrolithotomy:Apilotstudy
YiweiWang,LihengGao,MingxiXu,WenfengLi,YuanshenMao,FujunWang,LuWang,JunDa*,
ZhongWang*
AsianJournalofUrology()8,–