1 Section of Endocrinology, Diabetes, and Metabolism, Yale School of Medicine, PO Box 208020, New Haven, CT 06520-8020, USA. Electronic address: elizabeth.holt@yale.edu.
2 Section of Endocrinology, Diabetes, and Metabolism, Yale School of Medicine, PO Box 208020, New Haven, CT 06520-8020, USA. Electronic address: silvio.inzucchi@yale.edu.