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.
A proportional Venn diagram representing percentages (%) of patients in each of the antibody strata: anti-CCP positive in the lower left oval, RF positive in the lower right oval and anti-CarP positive in the upper one. Percentage of triple negatives is shown outside the Venn diagram in the upper left corner.
