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 total MIF concentrations among different sample collection types. Significant differences, determined by Friedman’s test with multiple pairwise comparisons, are indicated by p-values of <0.005. Matching symbols designate significant differences.
