the frequency of occurrence of hepatitis b antigen ( hbag ) and certain tissue autoantibodies [ antinuclear antibody ( ana ) , smooth muscle antibody ( sma ) and mitochondrial antibody ( mia ) ] were studied with the microtiter complement fixation and immunofluorescence techniques respectively in a group of patients suffering from chronic liver diseases .
C0004358
autoantibodies
C0003243
antinuclear antibody