title: Recoding preventive exposures to get valid measures of interaction on an additive scale.
authors: Mirjam J
authors: MJ
authors: Knol
authors: Tyler J
authors: TJ
authors: VanderWeele
mesh_terms: D000465:Algorithms; D004843:Epistasis, Genetic / Q000502:physiology*; D059647:Gene-Environment Interaction; D006801:Humans