In the print version of the article cited above, the sources of funding were not included. The Funding section should read: “This work was supported by research grants from the Novo Nordisk Foundation, the A.P. Møller Foundation for the Advancement of Medical Science, the Beckett Foundation, the Aase and Ejnar Danielsens Foundation, the Danish Diabetes Academy supported by the Novo Nordisk Foundation, and the Danish Diabetes Association.” The online version reflects these changes.