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.
Flow chart of the identification of RA cases in the E3N cohort. E3N, ‘Etude Epidémiologique auprès des femmes de la Mutuelle générale de l’Education Nationale’; IRD, inflammatory rheumatic disease; MGEN, ‘Mutuelle Générale de l’Education Nationale’; RA, rheumatoid arthritis; SpA, spondylarthritis.
