Figure 1.
Flow diagram of subject participation throughout all stages of the intervention study. IG: intervention group; CG: control group; COD: change of direction; 3D: three dimensional.
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.