Separation of tumor-stimulating from tumor-inhibiting factors from fetal and adult rat tissues.
D000818:Animals; D000941:Antigens; D002417:Cattle; D005260:Female; D005333:Fetus / Q000276:immunology*; D008099:Liver / Q000276:immunology*; D008325:Mammary Neoplasms, Experimental / Q000276:immunology* / Q000473:pathology; D011167:Portacaval Shunt, Surgical; D051381:Rats
D000941:Antigens