TMEM106B and mild neurocognitive disorder: Due to availability of DNA, TMEM106B genotypes were only available for 7 of the 14 FTLD cases, and 1 of the 7 MND cases, bearing C9ORF72 expansions, 9 of the 12 GRN mutation carriers, and 10 of the 14 FTLD cases and 1 of the 20 MND cases without known mutation.