1. Department of Medical Endocrinology and Metabolism, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark.
2. Department of Medicine, University of Massachusetts School of Medicine, Worcester, Massachusetts.
3. Harvard Medical School and Massachusetts General Hospital, Boston, Massachusetts.
4. Division of Endocrinology, Diabetes and Metabolism, Centre Hospitalier Universitaire Vaudois, University of Lausanne, Lausanne, Switzerland.
5. Boston University School of Medicine, Section of Endocrinology, Diabetes, and Nutrition, Boston, Massachusetts.