title: A simple procedure for localized mutagenesis using nitrosoguanidine.
mesh_terms: D003090:Coliphages; D004926:Escherichia coli / Q000187:drug effects; D009153:Mutagens / Q000494:pharmacology*; D009154:Mutation; D009604:Nitrosoguanidines / Q000494:pharmacology*
chemical_list: D009153:Mutagens; D009604:Nitrosoguanidines