The perforant pathway in Down's syndrome.
D000328:Adult; D000368:Aged; D000544:Alzheimer Disease / Q000473:pathology*; D004314:Down Syndrome / Q000473:pathology*; D006624:Hippocampus / Q000473:pathology*; D006801:Humans; D008032:Limbic System / Q000473:pathology*; D008875:Middle Aged; D009434:Neural Pathways / Q000473:pathology