title: Walking speed is a useful marker of frailty in older persons--reply.
authors: Michelle C
authors: MC
authors: Odden
authors: Carmen A
authors: CA
authors: Peralta
authors: Kenneth E
authors: KE
authors: Covinsky
mesh_terms: D005260:Female; D006801:Humans; D006973:Hypertension; D008297:Male; D010809:Physical Fitness; D016138:Walking