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.
A significant difference between smokers with and without COPD for the level of serum VWF was shown in 2006/2007 and this difference was maintained in 2012 (left). The correlation between 2006/2007 and 2012 levels of VWF was significant (right). The data is shown for smokers with (circles) and without (open squares) COPD and with the line of identity.
