%0 Journal Article %T Prevalence and risk of progression of preclinical Alzheimer¡¯s disease stages: a systematic review and meta-analysis %A Elena Chipi %A Katia D¡¯Andrea %A Lucilla Parnetti %A Nicola Salvadori %J Archive of "Alzheimer's Research & Therapy". %D 2019 %R 10.1186/s13195-018-0459-7 %X The online version of this article (10.1186/s13195-018-0459-7) contains supplementary material, which is available to authorized users %K Preclinical Alzheimer¡¯s disease %K Systematic review %K Biomarkers %K National Institute on Aging¨CAlzheimer¡¯s Association criteria %K Prevalence %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6334406/