[1] Univ Padua, Azienda Osped Univ Padova, Dept Med DIMED, Geriatr Div, Padua, Italy
[2] Univ Padua, Dept Gen Psychol DPG, Padua, Italy
[3] Bluecompanion Ltd, London, England
[4] Univ Firenze, Dept Expt & Clin Med, Geriatr Intens Care Unit, Florence, Italy
[5] ASP Catanzaro, Ctr Cognit Disorders & Dementia Catanzaro Lido, Catanzaro, Italy
[6] Sci Comm Natl Assoc Third Age Residences ANASTE C, Lamezia Terme, Italy
[7] Univ Ferrara, Dept Med Sci, Ferrara, Italy
[8] Univ Pisa, Dept Clin & Expt Med, Geriatr Unit, Pisa, Italy
[9] Univ Milano Bicocca, San Gerardo Hosp, Sch Med & Surg, Acute Geriatr Unit, Monza, Italy
[10] Dept Clin Sci, Oslo, Norway
[11] Univ Bergen, Diakonhjemmet Hosp, Oslo, Norway
[12] Campus Biomed Univ, Unit Geriatr, Dept Med, Rome, Italy
[13] Teaching Hosp, Rome, Italy