FIGURE 1.
Overview of cohorts contributing data to the meta‐analysis. Countries with available data (A) and distribution of cohorts with data from primary care/general population cohorts or referral/teaching hospitals (B)
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.