Marsdin E, Noble JG, Reynard JM, Turney BW
The Oxford Stone Group, The Churchill Hospital , Oxford, United Kingdom

Lojanapiwat B, Tanthanuch M, Pripathanont C, Ratchanon S, Srinualnad S, Taweemonkongsap T, Kanyok S, Lammongkolkul S
Division of Urology and Department of surgery, Chiangmai University, Thailand

Lee SB, Lee TG, Yoo DS, Huh PW, Cho KS
Department of Neurosurgery, Uijeongbu St. Mary's Hospital, The Catholic University of Korea, College of Medicine, Uijeongbu, Korea

Bach C, Zaman F, Kachrilas S, Kumar P, Buchholz N, Masood J
Department of Urology, Barts and The London NHS Trust, West Smithfield, London EC1A 7BE, UK

Bostanci Y, Ozden E, Atac F, Yakupoglu YK, Yilmaz AF, Sarikaya S
Department of Urology, Faculty of Medicine, Ondokuz Mayis University, Kurupelit, 55139, Samsun, Turkey