Figure 1.
The mean Aβ 42 variation in CSF during 26 months. An internal quality control sample was run on 214 different occasions rendering a mean ± SD value (—) of 643 ± 48 ng/L and a CV of 7.5%.
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.