 ehrlich ascit tumor cell agglutin interfer exert epsilonaminocapro acid eac acetyl deriv eaca activ epsilon-aminocapro acid eac acetyl deriv eaca studi antigen-antibodi reaction membran antigen immun globulin vitro eac eaca affect immun globulin alter membran antigen ehrlich ascit tumor cell inhibit agglutin reaction induc specif antiserum inhibit partial antigen alter observ repres promin direct interfer level antigen-antibodi reaction membran antigen altern induc drug nitrogen mustard compar account toxic eac eaca activ specif nitrogen mustard 