Li G, McAteer JA, Williams JC Jr, Berwick ZC
Department of Anatomy and Cell Biology, Indiana University School of Medicine , Indianapolis, Indiana

Liu LR, Li QJ, Wei Q, Liu ZH, Xu Y
Department of Urology, West China Hospital, Sichuan University, No. 37, Guo Xue Xiang, Chengdu, Sichuan, China

Bourdoumis A, Stasinou T, Kachrilas S, Papatsoris AG, Buchholz N, Masood J
Endourology and Stones Services, Barts Health NHS Trust, 9th Floor, Royal London Hospital, Whitechapel, London E1 1BB, UK
Department of Urology, North Devon District Hospital NHS Trust, Barnstaple, North Devon EX31 4HX, UK
2nd Department of Urology, School of Medicine, University of Athens, Sismanoglio General Hospital, 1 Sismanogleiou Street, 14578 Athens, Greece

Piggott KL, Bell CM
Resident, Department of Medicine, McMaster University, Hamilton, ON
Department of Medicine, Mount Sinai Hospital, Faculty of Medicine and Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON

Jee JY, Kim SD, Cho WY
Department of Urology, Dong-A University College of Medicine, Busan, Korea