Pre-cancerous steps in carcinogenesis. Their physiological adaptive nature.
D000222:Adaptation, Physiological; D000818:Animals; D002273:Carcinogens; D002471:Cell Transformation, Neoplastic; D002472:Cell Transformation, Viral; D006801:Humans; D008099:Liver / Q000473:pathology; D008113:Liver Neoplasms / Q000209:etiology; D008545:Melanoma / Q000209:etiology; D008862:Microsomes, Liver / Q000201:enzymology; D009857:Oncogenes; D011230:Precancerous Conditions / Q000235:genetics / Q000503:physiopathology*; D012878:Skin Neoplasms / Q000209:etiology
D002273:Carcinogens