title: Tumor grading by implantation in embryos. I. Grading of minimum-deviation hepatomas.
mesh_terms: D000818:Animals; D006528:Carcinoma, Hepatocellular / Q000201:enzymology / Q000235:genetics / Q000473:pathology*; D002455:Cell Division; D002465:Cell Movement; D002642:Chick Embryo; D002869:Chromosome Aberrations; D005855:Germ Layers; D008113:Liver Neoplasms / Q000201:enzymology / Q000235:genetics / Q000473:pathology*; D009368:Neoplasm Transplantation; D009374:Neoplasms, Experimental / Q000201:enzymology / Q000235:genetics / Q000473:pathology; D051381:Rats; D014183:Transplantation, Heterologous