Gait Variability Is Associated With Gray Matter Volumes Implicated in Cognitive Function: A Cross-Sectional Analysis From the AGUEDA Trial - Martin-Fuentes, Isabel; Solis-Urra, Patricio; Ruiz-Malagon, Emilio J; Coca-Pulido, Andrea; Toval, Angel; Fernandez-Gamez, Beatriz; Olvera-Rojas, Marcos; Bellon, Dario; Sclafani, Alessandro; Mora-Gonzalez, Jose; Sanchez-Aranda, Lucia; Sanchez-Martinez, Javier; et al. (Innovation In Aging, 2025)