beta CaroteneCarotenoidsVitamin EVitamin AOral Submucous FibrosisAntioxidantsVitaminsAscorbic AcidDietary SupplementsPhycomycesDouble-Blind Methodalpha-Tocopherolbeta-Carotene 15,15'-Monooxygenasezeta CaroteneGeranylgeranyl-Diphosphate GeranylgeranyltransferaseSmokingCataractRiskIncidenceTreatment FailureXanthophyllsInterleukin-1betaFollow-Up StudiesLuteinCardiovascular DiseasesIntramolecular Lyasesbeta 2-MicroglobulinProportional Hazards ModelsLung NeoplasmsSynthetic BiologyDaucus carotaVitamin A DeficiencyMolecular Sequence DataNorisoprenoidsPlants, EdibleReceptors, Adrenergic, betaIntegrin beta3Genes, SyntheticDietMucoralesFruitErwiniaOxygenases