Studies on the nature of acquired immunity against leukemia in guinea pigs.
D000818:Animals; D005260:Female; D006168:Guinea Pigs; D007109:Immunity; D007112:Immunity, Maternally-Acquired; D007114:Immunization; D007117:Immunization, Secondary; D007279:Injections, Subcutaneous; D007938:Leukemia / Q000235:genetics / Q000276:immunology*; D007942:Leukemia, Experimental; D008297:Male; D008854:Microscopy, Electron; D009365:Neoplasm Regression, Spontaneous; D009368:Neoplasm Transplantation; D010784:Photomicrography; D012737:Sex Factors