title: Use of models in low-dose extrapolation.
mesh_terms: D000818:Animals; D001681:Biological Assay; D002273:Carcinogens; D006801:Humans; D008957:Models, Genetic; D009153:Mutagens; D009154:Mutation; D012306:Risk
chemical_list: D002273:Carcinogens; D009153:Mutagens