title: Estimating causal effects.
authors: University of Minnesota School of Public Health, Mayo Mail Code 807, 420 Delaware St. SE, Minneapolis, MN 55455-0392, USA. GMPhD@umn.edu
authors: George
authors: G
authors: Maldonado
authors: Sander
authors: S
authors: Greenland
mesh_terms: D015982:Bias; D015984:Causality; D015986:Confounding Factors, Epidemiologic; D015987:Effect Modifier, Epidemiologic; D006801:Humans