Precancerous changes in the activity of enzymes associated with tryptophan metabolism and their relevancy to hepatocarcinogenesis.
D006528:Carcinoma, Hepatocellular; D008025:Ligases; D008113:Liver Neoplasms; D014364:Tryptophan
D014364:Tryptophan; D008025:Ligases
HEPATOMA; LIGASES; TRYPTOPHAN