George Geroulakos, MD FRCS DIC PhD is the President of the Section of Vascular Medicine at the Royal Society of Medicine, a Consultant Vascular Surgeon at Charing Cross Hospital and a Senior Lecturer at Imperial College London, UK.Bauer Sumpio, MD PhD FACS is Professor of Vascular Surgery and Diagnostic Radiology and Chief of Vascular Surgery at Yale University School of Medicine, New Haven, CT, USA.