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.
Comparison of fecal flora between NEC patient non-NEC patients. Differences between the control group and the NEC group at the (A) family and (B) genus levels using the Wilcoxon signed-rank test. Significant differences are shown by *P <0.05, **P <0.01.
