SunlightUltraviolet RaysSunscreening AgentsSunburnDose-Response Relationship, RadiationRadiation EffectsErythemaSkin PigmentationRadiation DosageNeoplasms, Radiation-InducedSkin NeoplasmsSkinUltraviolet TherapyRadiation InjuriesPUVA TherapyRadiation, IonizingPyrimidine DimersRadiation ToleranceMice, HairlessPhotosensitivity DisordersSunbathingIncandescenceDNA DamageCarcinoma, Basal CellMelanocytesRadiation Injuries, ExperimentalRadiationDNA RepairRadiation GeneticsSun Protection FactorMethoxsalenSkin AgingAcetoxyacetylaminofluoreneMelaninsUrocanic AcidKeratinocytesRadiation ProtectionMelanomaRadiation MonitoringEye Protective DevicesProtective ClothingFilm DosimetryHair ColorEnvironmental ExposureDermatitis, PhotoallergicVitamin DSolar EnergyDermatitis, ContactSpectrophotometry, UltravioletXeroderma PigmentosumSeasonsEpidermisCiliophoraReceptor, Melanocortin, Type 1Receptors, MelanocortinVitamin D DeficiencyCataractLightOzonePhotochemistryAnthralinKeratosisMutationRadiation OncologyPterygiumTime FactorsPhotolysisLens, CrystallineReceptors, CorticotropinCosmic RadiationDeoxyribodipyrimidine Photo-LyaseCell SurvivalGamma RaysAir MicrobiologyDNARadiation PneumonitisPigmentationCells, CulturedSkin Physiological PhenomenaEyeThymineMicrococcusArsenitesMice, Inbred C3HPsoriasisalpha-MSHMelanosomesBackground RadiationCarcinoma, Squamous CellRisk FactorsRadiotherapyDermatitis, PhototoxicFibroblastsAdministration, TopicalTumor Suppressor Protein p53Microscopy, UltravioletImmunosuppressionRadiometryCell LineRickets