Estimating premorbid cognitive abilities in low-Educated Populations - Apolinario, Daniel; Brucki, Sonia Maria Dozzi; Ferretti-Rebustini, Renata Eloah de Lucena; Farfel, José Marcelo; Magaldi, Regina Miksian; Busse, Alexandre Leopold; Jacob-Filho, Wilson (Plos One, 2013)