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.
PRISMA flow chart of study selection and inclusion (modified from Moher et al 23). BSRBR-AS, British Society for Rheumatology Biologics Register in Axial Spondyloarthritis; OM, outcome measure; PRISMA, Preferred Reporting Items for Systematic Reviews and Meta-Analyses; PsA, psoriatic arthritis; RA, rheumatoid arthritis.
