antigenic reactivity of 35 perchloric acid ( pca ) extracts of different histologic human lung cancer tissues was studied -- in comparison with the reactivity of the carcinoembryonic antigen ( cea ) , the nonspecific cross-reacting antigen ( nca ) , and alpha-1-antichymotrypsin -- with the use of specific immune sera against pca extracts of lung squamous cell carcinoma , and anti-cea , anti-nca , and anti-alpha-1-antichymotrypsin sera .
C0086418
human
C0007082
cea