 reaction cytotox antibodi unknown mous isoantigen antiserum produc c3h c3h st lymphosarcoma 6c3hed mixtur antibodi properti specif anti h-5a hemagglutin antibodi remov absorpt red cell tissu anti cytotoxin react c3h st tissu 6c3hed red cell reciproc antiserum c3h st anti c3h sarcoma mc1m complex hemagglutinin anti h-6a varieti cytotoxin appear specif c3h tissu tumor mc1m react antigen c3h carcinoma bp8 addit cytotoxin immun sublin inbr strain result product varieti antibodi direct unrel antigen long transplant cell signific 