Figure 1.
CONSORT flowchart of the trial process.V1-V6 indicates Visit 1 to Visit 6 of the study schedule.
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.