63 cases of extraintestinal amoebiasis , 17 cases of intestinal amoebiasis , and 25 selected control persons were examined for serum antibodies to antigen from e. histolytica using the counter-immunoelectrophoresis , the complement fixation test , the indirect haemagglutination test and the latex agglutination test .
C0002438
amoebiasis
C0013370
intestinal amoebiasis