Figure 3.
Temporal distribution of admissions by country income group. HIC, high income country; LLMIC, low- and low-middle income country; UMIC, upper-middle income country.
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.