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Imaging of Neurodegeneration within the NIA-AA Research Framework: The ‘N’ in the AT(N) Scheme

Imaging of Neurodegeneration within the NIA-AA Research Framework: The ‘N’ in the AT(N) Scheme Alzheimer’s disease (AD) is the most common form of dementia, affecting millions globally. As research shifts increasingly toward earlier diagnosis and targeted interventions, including risk factors, biomarker-based frameworks have become essential tools for guiding both clinical research and drug development.