Fig. 1
Flow of information through different stages of systematic review. RA = rheumatoid arthritis, AS = ankylosing spondylitis, PsA = psoriatic arthritis
Fig. 1 | BMC Musculoskeletal Disorders
Flow of information through different stages of systematic review. RA = rheumatoid arthritis, AS = ankylosing spondylitis, PsA = psoriatic arthritis