1 Department of Medicine III and Paul Langerhans Institute Dresden, Helmholtz Center Munich, University Hospital Carl Gustav Carus, Dresden, Germany; Department of Diabetes, School of Life Course Science and Medicine, King's College London, London, UK; Department of Endocrinology and Diabetology, University Hospital Zurich, Zurich, Switzerland; Faculty of Medicine, Technische Universität Dresden, Dresden, Germany; German Center for Diabetes Research, Neuherberg, Germany. Electronic address: stefan.bornstein@uniklinikum-dresden.de.
2 Department of Diabetes, Central Clinical School, Monash University, Melbourne, VIC, Australia.
3 Department of Diabetes, School of Life Course Science and Medicine, King's College London, London, UK; Bariatric and Metabolic Surgery, King's College Hospital, London, UK.
4 Department of Medicine III and Paul Langerhans Institute Dresden, Helmholtz Center Munich, University Hospital Carl Gustav Carus, Dresden, Germany; Department of Endocrinology and Diabetology, University Hospital Zurich, Zurich, Switzerland; Faculty of Medicine, Technische Universität Dresden, Dresden, Germany; Deutsche Forschungsgemeinschaft Center for Regenerative Therapies Dresden, Technische Universität Dresden, Dresden, Germany; German Center for Diabetes Research, Neuherberg, Germany.