Vascular and metabolic risk factor differences prior to dementia diagnosis: a multidatabase case–control study using European electronic health records oleh Johan van Der Lei, Robert Stewart, Pieter Jelle Visser, Myriam Alexander, David Ansell, Alessandro Pasqua, Francesco Lapi, Paul Avillach, Gayan Perera, P R Rijnbeek, Mark Forrest Gordon, Miguel Angel Mayer