Presence of a tumor inhibitory principle in livers.
D000970:Antineoplastic Agents; D006801:Humans; D008099:Liver; D008110:Liver Extracts / Q000494:pharmacology*; D009369:Neoplasms
D000970:Antineoplastic Agents; D008110:Liver Extracts
ANTINEOPLASTIC AGENTS; LIVER EXTRACTS/pharmacology