it was deduced from these results that the transplantation antigen of tumor cells that were induced by infection with friend , gross , and rauscher viruses may contain an antigen common to all three viruses and also an antigen that is individually specific , and that the host 's immunological tolerance ( induced by the neonatal injection of either friend , gross , or rauscher virus ) may consist of the tolerance common to all three viruses and , also , of the tolerance that is individually specific .
C0003320
antigen
C0020963
immunological tolerance