title: Epithelial cancer, differentiation, and vitamin A.
mesh_terms: D002273:Carcinogens / Q000037:antagonists & inhibitors*; D002294:Carcinoma, Squamous Cell / Q000209:etiology*; D002454:Cell Differentiation / Q000187:drug effects; D002471:Cell Transformation, Neoplastic / Q000187:drug effects*; D006131:Growth Inhibitors; D014212:Tretinoin / Q000494:pharmacology; D014801:Vitamin A / Q000494:pharmacology*
chemical_list: D002273:Carcinogens; D006131:Growth Inhibitors; D014801:Vitamin A; D014212:Tretinoin