MAPT and Alzheimer disease: In line with previous studies (Barthelemy et al, 2020; Janelidze et al, 2020b), p‐tau217 showed subtly stronger associations with tau PET measures and other AD features than p‐tau181, which could in turn be explained by stronger relationships with the quantity of neurofibrillary tangle pathology and neuropil threads for antibodies recognizing p‐tau217 vs p‐tau181 (Spillantini et al, 1996).