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1) Lilly's diagnostic is about beta amyloid plaques, not Alzheimer directly. There is some questions whether amyloid plaques are good indicators of Al Zheimer or not, and this will need to be validated in the future.

Thanks for mentioning that, it's a good point.

Amyloid plaques are a symptom of Alzheimer's disease, but it's still up in the air as to whether they are the cause of Alzheimer's or the result.

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