FIGURE 1.
PRISMA flow diagram of the study. In this study, we used the “PRISMA 2020 flow diagram” template which included searches of only databases and registers.
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.