 Okay this section is about the relationship between ancestry and health or how we can use ancestry to inform health of African-Americans and other human population and our first speaker is Dr. Bouchard from University of California in San Francisco and he's a very good friend of mine and his interest really is centered on identified genetic risk factor for common diseases and he's really intrigued by the racial and ethnic implications of some of these genetic results that we see in the context of what he'll do. So you will hear he's going to give us a fantastic talk. So Esteban, please.