An official website of the United States government
Here's how you know
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.
Representative examples of the CXRs from the Hong Kong hospitals external test set, before (A) and after (B) Gusarev bone suppression. The top row shows radiographs from a non-COVID patient; the bottom row, those from a COVID-positive patient. CXR, chest X-ray.