image-207  Alzheimer's Disease in Don Matias, Antioquia, Colombia Transcript Alzheimer's Disease in Don Matias Antioquia Transcript starts at 0:36 TOM CLARKE: Antioquia, Colombia's isolated northern highlands. I'm with Lucia Madrigal(ph), a nurse on her rounds from the regional medical school. Until recently, many of Lucia's patients were only accessible by horse or on foot. Once, she ...