E. V. de Souza Júnior, D. P. Cruz, C. dos S. Silva, R. S. Rosa, L. R. Siqueira, and N. O. Sawada, “Implications of self-reported fragility on the quality of life of older adults: a cross-sectional study”, Rev. Esc. Enferm. USP, vol. 55, p. e20210040, Aug. 2021, doi: 10.1590/1980-220X-REEUSP-2021-0040.