1. Family Medicine Institute, Faculty of Biomedical Sciences, Università della Svizzera italiana, Lugano, Switzerland
2. Department of Geriatrics, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland
3. Department of Internal Medicine, University Hospital Zurich and University of Zurich, Switzerland
4. Istituto Auxologico Italiano, IRCCS, Cardiology Unit and Department of Cardiovascular, Neural and Metabolic Sciences, San Luca Hospital, Milano, & Department of Medicine and Surgery, University of Milano-Bicocca, Milano, Italy
5. Cardiovascular Research, San Giovanni Hospital, Bellinzona, Switzerland