Skin AbsorptionTetrachloroethyleneTolueneAtmosphere Exposure ChambersAbsorptionBenzeneIntestinal AbsorptionMethanolSolventsSkinDrug ResistanceDrug Resistance, MicrobialDrug Resistance, BacterialDrug Resistance, NeoplasmSkin AgingSkin DiseasesSkin NeoplasmsDrug Resistance, MultipleDisease ResistanceVascular ResistanceDrug Resistance, ViralDrug Resistance, Multiple, BacterialAnti-Bacterial AgentsMicrobial Sensitivity TestsSkin Physiological PhenomenaBiological AvailabilitySkin TestsMutationTetracycline ResistanceSkin PigmentationSpectrophotometry, AtomicMolecular Sequence Data