title: ISOANTIGENIC VARIATION IN TUMOR CELL POPULATIONS.
mesh_terms: D000941:Antigens; D005823:Genetics; D007519:Isoantigens; D051379:Mice; D009369:Neoplasms / Q000276:immunology*; D012106:Research
chemical_list: D000941:Antigens; D007519:Isoantigens
keywords: ANTIGENS; EXPERIMENTAL LAB STUDY; GENETICS; MICE; NEOPLASM IMMUNOLOGY; NEOPLASMS