the levels of tumour-specific antigen , antibody and specific immune complexes in the sera of rats bearing lung nodules of a chemically induced rat hepatoma , produced by intravenous inoculation of viable tumour cells , have been examined and compared with the levels of serum factors in animals actively immunized by intravenous inoculation of mixed tumour cells and bcg .
C0003241
antibody
C0003313
immune complexes