title: Enhanced sensitivity of the fluctuations assay using a modified incubation procedure.
mesh_terms: D004305:Dose-Response Relationship, Drug; D004926:Escherichia coli / Q000235:genetics; D007854:Lead / Q000494:pharmacology; D008769:Methylnitronitrosoguanidine / Q000494:pharmacology; D009152:Mutagenicity Tests / Q000379:methods*
chemical_list: D008769:Methylnitronitrosoguanidine; D007854:Lead