Visual memory failure presages conversion to MELAS phenotype. - Leaffer, Emily B.; De Vivo, Darryl C.; Engelstad, Kristin; Fryer, Robert H.; Gu, Yian; Shungu, Dikoma C.; Hirano, Michio; DiMauro, Salvatore; Hinton, Veronica J. (Annals of Clinical & Translational Neurology, 2022)