Cobalt and titanium levels in the brain are associated with Alzheimer's disease pathology but not cognition: A study of older adults with and without total joint replacement. - Pourzal R; Agarwal P; Leurgans SE; McCarthy SM; Hall DJ; McDevitt CA; Ganio K; Ayton S; Bush AI; Grodstein F; James BD; Agrawal S; et al. (Acta biomaterialia, 2026)