beta CaroteneCarotenoidsOxygenVitamin EVitamin AOral Submucous FibrosisAntioxidantsVitaminsAscorbic AcidDietary SupplementsPhycomycesDouble-Blind Methodalpha-Tocopherolbeta-Carotene 15,15'-MonooxygenaseOxygen ConsumptionReactive Oxygen Specieszeta CaroteneGeranylgeranyl-Diphosphate GeranylgeranyltransferaseSmokingCataractRiskIncidenceTreatment FailureXanthophyllsInterleukin-1betaFollow-Up StudiesLuteinCardiovascular DiseasesIntramolecular LyasesProportional Hazards Modelsbeta 2-MicroglobulinLung NeoplasmsOxygen Inhalation TherapyDaucus carotaSinglet OxygenVitamin A DeficiencyPlants, EdibleNorisoprenoidsReceptors, Adrenergic, betaIntegrin beta3DietFruitMucoralesOxygenasesErwinia