pharmacoepidemiology, database epidemiology, big data analytics, age related dementias, Vaccines, viral and microbial pathogens, Alzheimer's disease, frontotemporal dementia, primary progressive aphasia, neurodegeneration, biomarkers, neuroimaging, genetics, MRI, PET, amyloid, tau, neuropyschology, early diagnosis and progression of Alzheimer's disease, disease progression models, normal pressure hydrocephalus and neurodegeneration, biostatistics, healthcare services research, Aging and Cognition, Epidemiology of dementia and cognitive impairments, methodology, racial/ethnic disparities