Dual-task gait speed assessments with an electronic walkway and a stopwatch in older adults. A reliability study. - Montero-Odasso, M.; Sarquis-Adamson, Y.; Kamkar, N.; Pieruccini-Faria, F.; Bray, N.; Cullen, S.; Mahon, J.; Titus, J.; Camicioli, R.; Borrie, M.J.; Bherer, L.; Speechley, M. (Experimental Gerontology, 2020)