A neurologist in Colombia, he worked with the world’s largest extended family with Alzheimer’s and helped fuel research to prevent or delay dementia symptoms. A neurologist in Colombia, he worked with the world’s largest extended family with Alzheimer’s and helped fuel research to prevent or delay dementia symptoms. Lopera, Francisco, Alzheimer’s Disease, Brain, Deaths (Obituaries), Doctors, Genetics and Heredity, Research, Colombia, University of Antioquia NYT > Science