1. Department of Cardiology, University Hospital Zurich (USZ) and University of Zurich (UZH), Zurich Switzerland
2. Department of Endocrinology, Diabetology and Clinical Nutrition, University Hospital Zurich (USZ) and University of Zurich (UZH), Zurich Switzerland
3. Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Munich, Germany