Alzheimer’s Association, facts about Alzheimer’s disease

National Parkinson’s Foundation, facts about Parkinson’s disease

National Institute on Aging, National Institutes of Health, basics on Alzheimer’s disease

National Institute of Neurological Disorders and Stroke, National Institutes of Health, Parkinson’s disease information page

State of Science in Alzheimer’s Research,” a 2016 National Press Foundation session with top officials of the Alzheimer’s Association