tumor cell colonies were characterized morphologically by pappenheim stain and immunologically for surface antigens by peroxidase-antiperoxidase immunostaining utilizing monoclonal antibodies ( carcinoembryonic antigen 26/3/13 and 26/5/1 , ema , hea125 , sam 2 and sam 10 ) which detected epithelial cell antigens .
C0007082
carcinoembryonic antigen
C0014597
epithelial cell