Ribeiro, D. K. de M. N.; Lenardt, M. H.; Michel, T.; Setoguchi, L. S.; Grden, C. R. B.; Oliveira, E. S. de. Contributory Factors for the Functional Independence of Oldest Old . Rev. Esc. Enferm. USP 2015, 49 (1), 89-96. https://doi.org/10.1590/S0080-623420150000100012.