Effect of Sodium-Glucose Cotransporter-2 Inhibitors on Frailty in Patients with Heart Failure. - Kitamura S; Horiuchi Y; Nishimura Y; Nemoto S; Gonda Y; Yoshiura D; Asami M; Taniwaki M; Yuzawa H; Komiyama K; Tanaka J; Tanabe K (Internal medicine (Tokyo, Japan), 2026)