1. Department of Urology, Haukeland University Hospital, Bergen, Norway.
2. Department of Clinical Medicine, University of Bergen, Bergen, Norway.
3. EAU YAU Urolithiasis group, Arnhem, The Netherlands.
4. Department of Urology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA.
5. Department of Urology, Medical University of Vienna, Vienna, Austria.
6. Department of Urology, Northwestern University School of Medicine, Chicago, Illinois, USA.
7. Department of Urology, Zurich University Hospital, Zurich, Switzerland.
8. Department of Urology, Beaumont Hospital, Dublin, Ireland.
9. Department of Urology, Sismanogleio Hospital, National and Kapodistrian University of Athens, Athens, Greece.
10. Department of Urology, Freeman Hospital, Newcastle-upon-Tyne, United Kingdom.
11. Department of Urology, Roefler Memorial Hospital, Pruszków, Poland.
12. Faculty of Medicine, Łazarski University, Warsaw, Poland.
13. Department of Urology, Father Muller Medical College, Karnataka, India.
14. Department of Urology, Ng Teng Fong General Hospital, Singapore, Singapore.
15. Department of Urology, Hospital Alemán de Buenos Aires, Buenos Aires, Argentina.
16. Department of Urology, University Hospital Southampton, Southampton, United Kingdom.