1 Department of Urology, Haukeland University Hospital, Bergen, Norway; Department of Clinical Medicine, University of Bergen, Bergen, Norway; EAU YAU Urolithiasis group. Electronic address: jonesurology@gmail.com.
2 Department of Urology, University Hospital Southampton, UK.
3 EAU YAU Urolithiasis group; Second Department of Urology, National and Kapodistrian University of Athens, Sismanogleio General Hospital, Athens, Greece.
4 Department of Urology, Haukeland University Hospital, Bergen, Norway.
5 Department of Urology, Haukeland University Hospital, Bergen, Norway; Department of Clinical Medicine, University of Bergen, Bergen, Norway.