Reducing frailty in frail people with multiple sclerosis: Feasibility of a 6-week multimodal exercise training program - Tobia Zanotto; Abbas Tabatabaei; Sharon G. Lynch; Jianghua He; Madison Lysaught; Pedram Ahmadnezhad; Jane Ibude; Hannes Devos; Lee D. Chaves; Bruce R. Troen; Jacob J. Sosnoff (PLoS ONE, 2026)