Previous Article Next Article Table of Contents Science, Vol.277, No.5333, 1833-1834, 1997 DOI10.1126/science.277.5333.1833 Export Citation Highly Variable Mutation-Rates in Commensal and Pathogenic Escherichia-Coli Matic I, Radman M, Taddei F, Picard B, Doit C, Bingen E, Denamur E, Elion J Keywords:STRAINS;POPULATIONS;COMPETITION Please enable JavaScript to view the comments powered by Disqus.