based upon the hypothesis that a factor most pertinent to the absence of an effective immune response in cancer is the inadequacy of the antigenic stimulus provided by the neoplasm , either in terms of weak immunogenicity of the tumor antigen or of the necessary antigen mass available to the reticuloendothelial tissues at any one time for effective sensitization , the host immune response capabilities were stimulated within a time frame synchronous with a greater release of tumor antigens .
C0027651
neoplasm
C0577559
mass