Noor Buchholz MBBSm MD FSSU (CH) FKNMG (NL) Consultant Urologist, Sobeh's Vascular and Medical Center, Dubai, United Arab Emirates Oliver Hakenberg MD PhD Professor & Chairman, Dept of Urology, Rostock University, Germany Junaid Masood MSc FRCS Consultant Urological Surgeon & Stone Specialist, Barts and The London NHS Trust, London, UK Christian Bach MD Consultant Urological Surgeon, Department of Urology, Freeman Hospital, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK