Liver fibrosis score, physical frailty, and the risk of dementia in older adults: The Italian Longitudinal Study on Aging oleh Vincenzo Solfrizzi, Emanuele Scafato, Carlo Custodero, Francesca Loparco, Alessandro Ciavarella, Francesco Panza, Davide Seripa, Bruno Pietro Imbimbo, Madia Lozupone, Nicola Napoli, Giuseppina Piazzolla, Lucia Galluzzo, Claudia Gandin, Marzia Baldereschi, Antonio Di Carlo, Domenico Inzitari, Alberto Pilotto, Carlo Sabbà, for the Italian Longitudinal Study on Aging Working Group