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.
This article has been corrected to fix the following typos in the PRISMA diagram:
Records removed before screening corrected from 2,125 to 1,425
Reports excluded due to "full text not available, retraction, or erroneous indexing" corrected from 0 to 10
No competing interests declared.
