Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Survival curves obtained by the Kaplan-Meier method. Survival curves for spontaneous bacterial peritonitis (SBP) due to Escherichia coli and Klebsiella species (EK), as a function of the production of extended-spectrum β-lactamase (ESBL). The P values shown were calculated by the log rank test.
