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.
The effects of ACh and SNP on the mean value of the blood flow signal and the average spectral amplitude for the CHF and HC subject groups. p < 0.01 is indicated by ⁎⁎. For an explanation of data presentation and error bars, see text (subsection on statistical analysis and presentation).
