title: The fascination and challenges of epidemiological research.
authors.forename: A R
authors.initials: AR
authors.lastname: Walker
mesh_terms: D000328:Adult; D003327:Coronary Disease / Q000453:epidemiology; D004813:Epidemiology / Q000639:trends; D006801:Humans; D008875:Middle Aged; D012106:Research; D013019:South Africa / Q000453:epidemiology; D014481:United States / Q000453:epidemiology