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.
Comparison of maintenance therapy with cyclophosphamide (grey line) or azathioprine (black line) in ANCA-associated vasculitis. ANCA, anti-neutrophil cytoplasmic antibody. Reproduced with permission from Jayne et al. N Engl J Med 2003 © 2003 Massachusetts Medical Society [49].
