Silveira, Tatiana, et al. “Association of Falls, Fear of Falling, Handgrip Strength and Gait Speed With Frailty Levels in the Community Elderly”. Medicina (Ribeirao Preto), vol. 48, no. 6, Dec. 2015, pp. 549-56, https://doi.org/10.11606/issn.2176-7262.v48i6p549-556.