the cases investigated included 7 psoriatic arthritis ( pa ) , 35 rheumatoid arthritis ( ra ) , 17 undifferentiated seronegative spondyloarthritis ( u-snsa ) , 13 behcet 's syndrome , 18 enteric arthropathies ( ea ) , 7 ankylosing spondylitis ( as ) and 4 reiter 's syndrome .
C0949690
spondyloarthritis
C0949691
snsa