1. Bacterial and epidemiologic study of the resistance to oxyiminocephalosporins in Escherichia coli in a French hospital 
Nathalie Caroff, Didier Lepelletier, Jean-Luc Orsonneau, Anny Blin, Roger Labia, Hervé Richet, Alain Reynaud 
Clinical Microbiology and Infection 
Volume 5, Issue 1, Pages (January 1999)
DOI: /j tb00096.x
Copyright © 1999 European Society of Clinical Infectious Diseases Terms and Conditions

2. Figure 1
(A) Analytic isoelectric focusing (pH range 4–10) of the β-lactamases extracted from six third-generation resistant Escherichia coli strains (lanes 1–6), Escherichia coli K12 (lane 7) and p453 (pI=7.6) (lane 8). (B) Analytic isoelectric focusing (pH range 8–10) of the β-lactamases extracted from Escherichia coli K12 (lane 1), and six of the third-generation cephalosporin-resistant isolates (lanes 2–7).
Clinical Microbiology and Infection 1999 5, 37-46DOI: ( /j tb00096.x)
Copyright © 1999 European Society of Clinical Infectious Diseases Terms and Conditions