Edited by OMAR M. ABOUMARZOUK MBChB, MSc, PhD, MRCS (Glasg), FRCS (Urol), is a Consultant Urological Surgeon at the Queen Elizabeth University Hospital, Glasgow, UK and Honorary Clinical Senior Lecturer at the University of Glasgow, School of Medicine, Dentistry & Nursing, Glasgow, UK. His areas of interest are in upper urinary tract surgery (open, laparoscopic, and robotic surgery), endourology, functional urology, and urological trauma and injuries.