de la RosetteJ, AssimosD, DesaiM, GutierrezJ, LingemanJ, ScarpaR, TefekliA. on behalf of the CROES PCNL Study Group. The Clinical Research Office of the Endourological Society Percutaneous Nephrolithotomy Global Study: Indications, complications, and outcomes in 5803 patients. J Endourol, 2011; 25:11–17.