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  1. Excluded References - Diagnosis and Treatment of Clinical Alzheimer’s-Type Dementia: A Systematic Review - NCBI ... 
    https://www.ncbi.nlm.nih.gov/books/NBK556577
    ... Ding JM, Zhong P, et al. Impacts of huperzine A on the level of Fas, Apo2.7 ... al. Efficacy and safety of natural acetylcholinesterase inhibitor huperzine A in the treatment of Alzheimer’s disease: ...