White matter hyperintensities are seen only in GRN mutation carriers in the GENFI cohort - Sudre, Carole H.; Bocchetta, Martina; Cash, David; Thomas, David L.; Woollacott, Ione; Dick, Katrina M.; van Swieten, John; Borroni, Barbara; Galimberti, Daniela; Masellis, Mario; Tartaglia, Maria Carmela; Rowe, James B.; et al. (2017)