MAPT and frontotemporal dementia: Genetic studies of Chinese FTD populations have revealed genotype-phenotype correlations: MAPT mutations with frontotemporal dementia and parkinsonism linked to chromosome 17 (FTDP-17), GRN mutations with frontotemporal lobar degeneration with TDP-43 proteinopathy (FTLD-TDP), C9orf72/CHCHD10/TBK1 mutations with amyotrophic lateral sclerosis (ALS)-FTD spectrum disorders, and VCP mutations with inclusion body myopathy associated with Paget disease of bone and frontotemporal dementia (IBMPFD) (Jiang et al., 2021).