In agreement with our previously published results on [18F]-Flortaucipir and [18F]-MK-6240 [1, 29, 31, 33], nuclear emulsion dipped slides after incubation with each tracer exhibited a very similar pattern at the cellular level for the three tracers, with high concentrations of silver grains coinciding with the typical location of tau aggregates in neuronal somas and swollen neuritic processes in AD brains. Here, MAPT is linked to Alzheimer disease.