Figure 3.
The distribution of countries covered in the 25 papers. Created with Mapchart (https://www.mapchart.net/, accession on 24 August 2022).
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.