Effect of Nicotinamide Mononucleotide on Retinal Thickness of Older Patients With Diabetes Mellitus: A Placebo-Controlled, Double-Blind Study. - Shiraki A; Hara C; Akasaka H; Nakagami H; Sugimoto K; Yasunobe Y; Minami T; Fujimoto T; Yamamoto K; Asano K; Kanou M; Yamana K; et al. (Geriatrics & gerontology international, 2026)