Fig 4. Bland Altman plot, The difference between the first and second trial against the mean of the end times (s) of the Illinois test (n = 21).
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.