Some notable mentions of medical anthropologists who have worked and contributed to epidemiology and public health in general include Dr. Jim Kim and Paul Farmer. Dr. Jim Kim served as the president of the World Bank while Paul Farmer is a physician and medical anthropologists who focuses on infectious diseases and treatment. Both of these men co-founded the Partners in Health (PIH) program, which provided free health care to the poorest populations in countries like Haiti, Peru, and Rwanda. Other notable mentions are Amber Wutich and Alexandra Brewis, both of whom are professors and researchers at Arizona State University. They focus on health impacts caused by resource scarcity, specifically relating to lack of access to clean water in developing countries. Wutich is a director of the Global Ethnohydrology study which looks at water knowledge and management in ten countries, while Brewis researches the impact of culture on human biology.