1. Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada
2. Diabetes Research Institute, University of Miami, Miami, FL
3. Division of Endocrinology, Diabetes & Clinical Nutrition, Oregon Health & Science University, Portland, OR
4. CNR Institute of Clinical Physiology, and the Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy