PorphyrinsUrineCoproporphyrinsMetalloporphyrinsHematoporphyrinsUroporphyrinsPorphyriasProtoporphyrinsAminolevulinic AcidDeuteroporphyrinsMesoporphyrinsHarderian GlandHemeFerrochelataseHematoporphyrin DerivativePhotosensitizing AgentsPhotochemotherapyLevulinic AcidsDihematoporphyrin EtherPorphobilinogenPorphyrinogensUroporphyrinogen DecarboxylaseUrinalysisHydroxymethylbilane SynthaseHeminHexachlorobenzeneChromatography, High Pressure Liquid5-Aminolevulinate SynthetaseSpectrometry, FluorescenceSpectrophotometryHemeproteinsPorphyria Cutanea TardaUroporphyrinogensPorphyrias, HepaticMolecular StructureProtoporphyrinogen OxidaseDicarbethoxydihydrocollidineIronPorphobilinogen SynthaseUrine Specimen CollectionMyoglobinHematoporphyrin PhotoradiationGold CompoundsSpectrophotometry, UltravioletSubstance Abuse DetectionCobaltPhotochemistrySpectrum AnalysisGriseofulvinOxidation-ReductionManganese