AD	Alzheimer’s disease
ALS	Amyotrophic Lateral Sclerosis
ALSbi	ALS with behavioral impairment
ALSci	ALS with cognitive impairment
ALScbi	ALS with combined cognitive and behavioral impairment
ALS-FTD	fully developed bvFTD in combination with ALS
ALSFTD-2	modified diagnostic criteria for cognitive and behavioral impairment in ALS
ALS-FTSD	Amyotrophic Lateral Sclerosis–Frontotemporal Spectrum Disorder
bvFTD	behavioral variant of frontotemporal dementia
FTLD	frontotemporal lobar degeneration
FTLD-MND	frontotemporal lobar degeneration with motor neuron disease
MND	motor neuron disease
nfvPPA	non-fluent/agrammatical variant of primary progressive aphasia
svPPA	semantic variant of primary progressive aphasia
TDP-43	transactive response DNA binding protein 43 kDa