Authors: Andrew Nicolaides1, 2, Stavros K. Kakkos 3, Jaime Gerardo Estrada-Guerrero 4 Moderator: Alun Davies (Editor-in-Chief of Phlebology; Imperial College London, London, United Kingdom) Author affiliations: 1 Department of Surgery, University of Nicosia Medical School, Nicosia, Cyprus 2 Department of Surgery, Imperial College London, London, United Kingdom 3 Department of Vascular Surgery, University of Patras Medical School, Patras, Greece 4 Department of Vascular Surgery, Beneficencia Española de Tampico, Tampico, Mexico