title: Interactions in epidemiology: relevance, identification, and estimation.
authors.affiliation: Department of Epidemiology and Statistics, University of California, Los Angeles, Los Angeles, CA 90095-1772, USA.
authors.forename: Sander
authors.initials: S
authors.lastname: Greenland
mesh_terms: D015984:Causality; D016021:Epidemiologic Studies; D008962:Models, Theoretical; D011159:Population Surveillance; D012044:Regression Analysis; D015203:Reproducibility of Results; D018570:Risk Assessment; D009626:Terminology as Topic