Figure 2.
Global flow chart of the study population. AC, anticoagulant; AF, atrial fibrillation; VKA, vitamin‐K antagonist
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.