Adam Brooks, FRCS (Gen Surg), DMCCNottingham University Hospital NHS Trust and Royal Centre for Defence Medicine, Birmingham Bryan A. Cotton, MD, MPHThe University of Texas Health Science CenterLt Col Nigel Tai, MS, FRCS (Gen Surg), RAMCRoyal London Hospital and Royal Centre for Defence Medicine, BirminghamCol Peter F. Mahoney, OBE, TD, MSc, FRCA, RAMCRCDM Birmingham ResearchAssociate Editor: David J. Humes, BSc, MBBS, MRCSLecturer in Surgery, University of Nottingham