Affiliation: | 1. Department of Biostatistics, General Clinical Research Center, Massachusetts General Hospital, , Boston, MA, USA;2. Department of Physiology, University of Lausanne, , Lausanne, Switzerland;3. Endocrinology, Diabetes, & Metabolism Service, Centre Hospitalier Universitaire Vaudois, , Lausanne, Switzerland;4. Department of Endocrinology, St. Vincent's University Hospital, , Dublin, Ireland |