PATHOGENIC ADAPTATION OF ESCHERICHIA COLI BY NATURAL VARIATION OF THE FIMH ADHESIN Article Sokurenko E.V., Chesnokova V., Dykhuizen D.E., Ofek I., Wu X.-R., Krogfelt K.A., Struve G., Schembri M.A., Hasty D.L. Proceedings of the National Academy of Sciences of the United States of America. Vol. 95. 1998. P. 8922-8926