FIGURE 1.
Flow chart of patient inclusion. A total of 640 AM cases were identified, and 485 of these cases were included in survival analysis.
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.