Figure 2.
Causal diagram presenting the causal assumptions among study variables in assessing the association between cognitive impairment and Hcy and S100B.
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.