Figure 4.
Funnel plot of a all RCTs and b all cohort studies investigating use of oral antibiotics the day before colorectal surgery to prevent surgical‐site infection
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.