Analysis 1.2.
Comparison 1 Local or regional anaesthesia for the prevention of persistent postoperative pain (inclusive analysis), Outcome 2 PPP three to six months after cardiac surgery.
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.