title: Population stratification bias: more widespread than previously thought.
authors.forename: Peter
authors.initials: P
authors.lastname: Kraft
mesh_terms: D015982:Bias; D005260:Female; D005500:Follow-Up Studies; D020022:Genetic Predisposition to Disease / Q000453:epidemiology*; D005820:Genetic Testing / Q000458:organization & administration; D005828:Genetics, Population; D006801:Humans; D015994:Incidence; D008297:Male; D008957:Models, Genetic; D015233:Models, Statistical; D010375:Pedigree; D018570:Risk Assessment