SunburnSunscreening AgentsSunlightSkin PigmentationSunbathingHeliotherapySkin NeoplasmsErythemaProtective ClothingUltraviolet RaysEye ColorNevusHair ColorNevus, PigmentedKeratosisMud TherapyNeoplasms, Radiation-InducedCarcinoma, Basal CellMelanomaCosmeticsMice, HairlessSkinSwimming PoolsSuntanBathing BeachesSkin AgingDermatitis, SeborrheicDose-Response Relationship, RadiationRescue WorkResearch ReportUnited StatesUnited States Dept. of Health and Human ServicesHealthy People ProgramsIncidenceNeoplasms