FIGURE 1.
Pragmatic placebo needle: 1, needle handle; 2, needle body; 3, adhesive pad; 4, blunt tip; 5, cutis.
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.