Ralph DeFronzo, Professor of Medicine and Chief of the Diabetes Division, The University of Texas Health Science Centre at San Antonio, and Deputy Director of Texas Diabetic Institute, San Antonio, Texas, USA.Ele Ferrannini, Professor of Internal Medicine, Department of Clinical and Experimental Medicine, University of Pisa School of Medicine, Pisa, Italy.K. George M. M Alberti, Visiting Professor, King's College, London, UK; Senior Research Investigator, Imperial College, London, UK; Emeritus Professor of Medicine, University of Newcastle upon Tyne, Newcastle upon Tyne.Paul Zimmet, Director Emeritus, Victor Smorgon Diabetes Centre, Baker IDI Heart and Diabetes Institute; Adjunct Professor, Monash University; Honorary President, International Diabetes Federation; Chair, Programme Committee, World Diabetes Congress 2013, Melbourne, VIC, Australia.