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.
Example of an ECG pattern shown by an overlapping to compare the changes under different physical conditions on different dates for the same individual; (a) before re-sampling and (b) after re-sampling (red-colored line: after, blue-colored line: before).
