Presenile dementia. Old before your time.
D000328:Adult; D000368:Aged; D000544:Alzheimer Disease / Q000235:genetics; D003704:Dementia / Q000235:genetics*; D005260:Female; D005817:Genetic Counseling; D006527:Hepatolenticular Degeneration / Q000235:genetics; D006801:Humans; D006816:Huntington Disease / Q000235:genetics; D008297:Male; D008875:Middle Aged