1. Lunenfeld-Tanenbaum Research Institute, Mt. Sinai Hospital, Toronto, Ontario, Canada
2. Duke Molecular Physiology Institute, Duke University, Durham, NC
3. Department of Medicine, Division of Endocrinology, Duke University, Durham, NC
4. Department of Pharmacology and Cancer Biology, Duke University, Durham, NC
5. Metabolic Research Laboratories, Wellcome Trust MRC Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, U.K.
6. Department of Medicine, University of Toronto, Toronto, Ontario, Canada