Vicentini FC, Mazzucchi E, Brito AH, Chedid Neto EA, Danilovic A, Srougi M
Section of Endourology and Lithiasis, Department of Urology, University of São Paulo Medical School, São Paulo, São Paulo, Brazil

Sancaktutar AA, Söylemez H, Bozkurt Y, Penbegül N, Atar M
Department of Urology, University of Dicle, Diyarbakır, Turkey

Zaytoun OM, Yakoubi R, Zahran AR, Fouda K, Marzouk E, Gaafar S, Fareed K
Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA

Rule AD, Krambeck AE, Lieske JC
Mayo Clinic, 200 1st Street SW, Rochester, MN 55905, USA

Karatzas A, Gravas S, Tzortzis V, Aravantinos E, Zachos I, Kalogeras N, Melekos M
Department of Urology, University of Thessaly School of Medicine, Mezourlo, 41110, Larissa, Greece