title: Mutagenecity in the mal regions of Escherichia coli.
mesh_terms: D004926:Escherichia coli / Q000187:drug effects* / Q000378:metabolism; D008320:Maltose / Q000378:metabolism; D009154:Mutation / Q000187:drug effects*; D009604:Nitrosoguanidines / Q000494:pharmacology*
chemical_list: D009604:Nitrosoguanidines; D008320:Maltose