M.J.D has acted as a consultant, advisory board member and speaker for Boehringer Ingelheim, Eli Lilly, Novo Nordisk and Sanofi; an advisory board member for Pfizer, AstraZeneca, Zealand Pharma and Carmot/Roche; and as a speaker for AstraZeneca and Amgen. She has received grants from AstraZeneca, Novo Nordisk, Boehringer Ingelheim, Janssen and Sanofi-Aventis and Eli Lilly. J.G. declares no competing interests.