Ultraviolet RaysUltraviolet TherapySpectrophotometry, UltravioletRadiation EffectsPUVA TherapyErythemaSunscreening AgentsMicroscopy, UltravioletSunlightDose-Response Relationship, RadiationMice, HairlessSkinPyrimidine DimersRadiation GeneticsSunburnSkin PigmentationMethoxsalenNeoplasms, Radiation-InducedSkin NeoplasmsDNA RepairPhotosensitivity DisordersSkin AgingKeratinocytesFicusinUrocanic AcidDermatitis, ContactDNA DamagePhotochemistryThymineXeroderma PigmentosumEpidermisMelaninsMelanocytesChromatography, High Pressure LiquidMutationDNADermatitis, PhototoxicPhotolysisSunbathingPsoriasisLightEscherichia coliCarcinoma, Basal CellDermatitis, PhotoallergicFibroblastsCells, CulturedGenetics, MicrobialSpectrum AnalysisColorPhotosensitizing AgentsPsoralensKeratosisSpectrophotometryCircular DichroismCell SurvivalAcetoxyacetylaminofluoreneCell LineTime FactorsDNA, BacterialMelanomaRadiation Injuries, ExperimentalLangerhans CellsEye Protective DevicesDinitrofluorobenzeneDeoxyribodipyrimidine Photo-LyaseApoptosisRadiationLasersKineticsColiphagesLysogenyLens, CrystallineDNA ReplicationAnthralinProtective ClothingMicrospectrophotometryMice, Inbred C3HTritiumMicrococcusPigmentationRadiation-Protective AgentsNucleic Acid DenaturationThymidineBromouracilEthologyTryptophanTumor Suppressor Protein p53Centrifugation, Density GradientKeratolytic AgentsTemperatureMolecular Sequence DataMutagensMitomycinsRadiation DosageSpacecraftRadiation ToleranceAcriflavinePhototherapyPhotobiologyBase Sequence