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. 2002 Feb;61(2):174–176. doi: 10.1136/ard.61.2.174

Figure 1 .

Figure 1

Synovial fluid (SF) and serum levels of interleukin (IL) 13 in patients with psoriatic arthritis (PsA) (n=35), rheumatoid arthritis (RA) (n=36), or osteoarthritis (OA) (n=15) and healthy controls (n=22). Lines connect the corresponding samples (SF and serum) of each patient. *Significantly different from SF of patients with PsA (p<0.002); **significantly different from SF of patients with OA (p<0.02); ***significantly different from serum of patients with PsA (p<0.0001) or OA (p<0.003) and controls (p<0.017); ****significantly different from SF of patients with OA (p<0.012).