Two-year follow-up study of elderly residents in S. Paulo, Brazil: methodology and preliminary results

Ramos LR, Toniolo J, Cendoroglo MS, Garcia JT, Najas MS, Perracini M, Paola CR, Santos FC, Bilton T, Ebel SJ, Macedo MB, Almada CM, Nasri F, Miranda RD, Gonçalves M, Santos AL, Fraietta R, Vivacqua I, Alves ML, Tudisco ES. Two-year follow-up study of elderly residents in S. Paulo, Brazil: methodology and preliminary results. Rev Saude Publica. 1998; 32(5): 397-407.