Lenardt, M. H.; Carneiro, N. H. K.; Betiolli, S. E.; Ribeiro, D. K. de M. N.; Wachholz, P. A. Prevalence of Pre-Frailty for the Component of Gait Speed in Older Adults . Rev. Latino-Am. Enferm. 2013, 21 (3), 734-741. https://doi.org/10.1590/S0104-11692013000300012.