thirty-three of these cases were studied with a panel of monoclonal antibodies ( b72.3 , b1.1 , ae1-ae3 and anti-leu-7 ) directed against tumor-associated glycoprotein ( tag-72 ) , carcinoembryonic antigen ( cea ) , cytokeratin and leu-7 ( an antigen common to natural killer cells and small cell lung carcinomas ) to assess the correlation between the immunocytochemical and ultrastructural evidence of differentiation in tumors lacking differentiation at the light microscopic level .
C0017968
glycoprotein
C0007082
carcinoembryonic antigen