Fig. 5.
proportion of failed items by domains (a) and items b of the quality assessment tool (see Table 1 for details on the items’ labelling)
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.