Medical University Department, Division of General Internal and Emergency Medicine, Kantonsspital Aarau, Aarau, Switzerland; Medical Faculty of the University of Basel, Basel, Switzerland. Electronic address: philipp.schuetz@unibas.ch. Medical University Department, Division of General Internal and Emergency Medicine, Kantonsspital Aarau, Aarau, Switzerland. Medical University Department, Division of General Internal and Emergency Medicine, Kantonsspital Aarau, Aarau, Switzerland; The New York Academy of Sciences, New York, NY, USA. Internal Medicine, Spital Lachen, Lachen, Switzerland; Department of Health Professions, Bern University of Applied Sciences, Bern, Switzerland. Internal Medicine, Spital Lachen, Lachen, Switzerland. Internal Medicine, Kantonsspital Münsterlingen, Münsterlingen, Switzerland. Internal Medicine and Endocrinology, Kantonsspital St Gallen, St Gallen, Switzerland. Internal Medicine, Kantonsspital Luzern, Luzern, Switzerland. Internal Medicine, Bürgerspital Solothurn, Solothurn, Switzerland. Internal Medicine, Kantonsspital Baselland, Standort Bruderholz Switzerland. Department of General Internal Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland. Department of General Internal Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland; Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland. Department of General Internal Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland; Division of General Internal Medicine, Brigham and Women's Hospital, Boston, MA, USA. Division of Diabetology, Endocrinology, Nutritional Medicine, and Metabolism, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland. Medical University Department, Division of General Internal and Emergency Medicine, Kantonsspital Aarau, Aarau, Switzerland; Medical Faculty of the University of Basel, Basel, Switzerland.