title: Converging toward a "unified field theory" of epidemiology.
authors.forename: P H
authors.initials: PH
authors.lastname: Kass
mesh_terms: D015982:Bias; D016022:Case-Control Studies; D004812:Epidemiologic Methods; D006801:Humans; D012107:Research Design; D012494:Sampling Studies; D009626:Terminology as Topic