1. Faculty of Biomedical Sciences, Università della Svizzera italiana, Lugano, Switzerland
2. Cardiovascular Research Unit, Dep. Medicina Interna, San Giovanni Hospital, Bellinzona, Switzerland
3. Istituto Auxologico Italiano, IRCCS, Cardiology Unit and Department of Medicine and Surgery, University of Milano-Bicocca, Milano, Italy
4. Department of Internal Medicine, University Hospital Zurich, Zurich, Switzerland
5. Herzzentrum, Kantonsspital, Luzern, Switzerland
6. Department of Geriatrics, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland
7. Medizinische Klinik, Kantonsspital Münsterlingen, Münsterlingen, Switzerland