Figure 2.
Median and variance in a short-term (5-minute) ECG recording of the studied variables, RR (a), QTe (b), QTp (c), and T e (d).
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.