 by passive immunization with xenoantisera, whereas evasion-negative tumors are rejected by some immunized mice and growth is markedly suppressed in others. Evasion-positive and -negative variants of FLC745 and RBL-5 lymphomas are being studied to establish the relationship between antigen evasion and tumor escape. X
by passive immunization with xenoantisera, whereas evasion - negative tumors are rejected by some immunized mouse and increase is markedly suppressed in others. Evasion - positive and -negative variants of FLC745 and RBL-5 lymphoma are being studied to establish the relationship between antigen evasion and tumor evasion. X
 by passive immunization wiuh xenoantisera, wkwreas xvasion-hegative tumors are rejected by some inmunievd mice and growth is markedly suppreswed mn others. Evasioi-lositivc and -kegatnvx variants of FKC745 and RBL-5 lymphomas are bdiug studied to establish the relationfhip beywfen antigen evwsiom and nunor escape. X
by passive immunization with xenoantisera, whereas evasion-negative rejected some immunized and growth is and variants of FLC745 RBL-5 lymphomas are studied to establish the relationship between evasion and tumor escape. X
 by passive immunization with XenoantiseRa, wheReaS evAsIon-nEgatIve tumors are reJEcteD by some immunized mice anD growTh IS marKEdLy supPressed IN oTHErs. evAsIon-PoSItIve anD -neGative vAriants of FlC745 aNd rBL-5 lymphomas ARe Being studiEd tO establish thE reLationShIp bETween AntIgen eVasion ANd tumoR escape. X
 by passive immunization w ith xenoan tiser a,whe re as e vasi on-negative tu m orsare rejected by some i mmuni ze d  mic e  a nd gr owth is ma r k edl ysu ppr es s ed  in o the rs. Eva sion-posit ive  a nd -negative va riants ofFLC 745 and RBL- 5 l ymphom as  ar e  bein g s tudie d to e s tablis h the rel at i onship between a nt igen  evasion and tumo r  e s cape. X
 by_passive immunization_with xenoantisera, whereas evasion-negative_tumors are_rejected_by some_immunized_mice and growth_is markedly suppressed_in others. Evasion-positive and_-negative variants of_FLC745_and RBL-5 lymphomas are being studied to establish the relationship between antigen evasion and_tumor_escape. X