1 Section of Endocrinology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO petter.bjornstad@childrenscolorado.org.
2 Joslin Diabetes Center, Harvard Medical School, Boston, MA.
3 Department of Pediatrics, Yale School of Medicine, New Haven, CT.
4 Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach an der Riss, Germany.
5 Boehringer Ingelheim International GmbH, Ingelheim, Germany.
6 Department of Physiology and Division of Nephrology, Department of Medicine, and Banting & Best Diabetes Centre, University Health Network, University of Toronto, Toronto, Canada.