the erythrocyte sedimentation rate ( esr ) and the serum acute-phase proteins ( app ) , c-reactive protein ( crp ) , fibrinogen , 9th component of complement ( c9 ) , and alpha , antitrypsin were measured on 231 occasions in 80 patients with ankylosing spondylitis and compared with those in 30 controls .
C0001347
acute-phase proteins
C0006560
c-reactive protein