title: Directed mutation: between unicorns and goats.
authors.affiliation: Department of Environmental Health, Boston University School of Public Health, Massachusetts 02118.
authors.forename: P L
authors.initials: PL
authors.lastname: Foster
mesh_terms: D003470:Culture Media; D004260:DNA Repair; D004269:DNA, Bacterial / Q000235:genetics; D004926:Escherichia coli / Q000235:genetics* / Q000254:growth & development; D009154:Mutation
chemical_list: D003470:Culture Media; D004269:DNA, Bacterial