title: Studies on the LS antigen of vaccinia virus.
mesh_terms: D000818:Animals; D000941:Antigens; D007106:Immune Sera; D005779:Immunodiffusion; D011817:Rabbits; D012756:Sheep; D012867:Skin / Q000276:immunology; D014616:Vaccinia virus / Q000276:immunology*
chemical_list: D000941:Antigens; D007106:Immune Sera