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Cerebral amyloid angiopathy (CAA) is not specific to Alzheimer's disease (AD). Density of small arterial vessels positive for amyloid beta (Aβ)40 (A) or Aβ42 (B) in older people without neurodegenerative pathology (Controls), with neurodegenerative dementia other than AD (Non‐AD), or with neuropathologically confirmed AD
