Figure 4.
% of case anaphylaxis with 1, 2, 3 or 4 affected organ systems (in the whole group).
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.