1. Area di Geriatria, Università Campus Bio-Medico di Roma, Rome, Italy;
2. Parc Sanitari Pere Virgili, Barcelona, Spain;
3. Vall d’Hebrón Institute of Research, Barcelona, Spain;
4. Department of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain;
5. Centro Medicina dell’Invecchiamento, Università Cattolica del Sacro Cuore, Rome, Italy;
6. Department of Rehabilitation and Aged Care of the Fondazione Camplani, Ancelle Hospital, Cremona, Italy