SunlightAbsorptionIntestinal AbsorptionScattering, RadiationHepatocyte Growth FactorSolar EnergyUltraviolet RaysAir MicrobiologyPhantoms, ImagingNebulizers and VaporizersAerosol PropellantsLightParticle SizeProto-Oncogene Proteins c-metAdministration, InhalationBiological AvailabilityVitamin DGamma CamerasSkin AbsorptionVitamin D DeficiencySunscreening AgentsHumidityRicketsSkin NeoplasmsAcid RainAtmosphereLigustrumSunburnSpectrophotometry, AtomicSkin PigmentationSpectrum AnalysisTime FactorsInhalation ExposureX-Ray Absorption SpectroscopyCone-Beam Computed TomographyJejunumLungEquipment DesignSeasonsTomography, Emission-Computed, Single-PhotonPhotochemistryWaterTechnetiumSkinGeography, MedicalMonte Carlo MethodSolar SystemAir MovementsMoonSpectrophotometryPhotosensitivity DisordersDermatitis, PhototoxicNeoplasms, Radiation-InducedDose-Response Relationship, RadiationCarcinoma, Basal CellPhotonsIronPowdersDolichosEnvironmental ExposureSun Protection FactorImage Processing, Computer-AssistedAdministration, OralPhotochemical ProcessesIntestine, SmallPhotosynthesisArtifactsX-RaysSulfuric AcidsDietPyrimidine DimersTechnetium Tc 99m PentetateAir Pollutants, OccupationalSkin CreamEnvironmental MonitoringReproducibility of ResultsModels, StructuralPhotolysisOccupational ExposureFiltrationSeawaterSootHydroxycholecalciferolsZinc RadioisotopesHeterotrophic ProcessesModels, BiologicalSulfonium CompoundsZincPhytic AcidTemperatureFecesFilm DosimetryCalcium, DietarySmogGermaniumDisinfectionAir PollutantsIron RadioisotopesRadiographic Image EnhancementCataract