Phenotypic variability in early-onset dementia segregating with a novel APP (p.I718M) variant. - Johansson C; Rodriguez-Vieitez E; Bluma M; Nennesmo I; Thonberg H; Ullgren A; Jelic V; Zetterberg H; Blennow K; Nordberg A; Graff C (Alzheimer's research & therapy, 2025)