Figure 1.
Search and selection for eligible systematic reviews. AHRQ EPC, Agency for Healthcare Research and Quality Evidence-based Practice Centers; VA ESP, Department of Veterans Affairs Evidence Synthesis Program.
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.