title: Spectroscopic studies of substantia nigra pigment in human subjects.
mesh_terms: D000663:Amphibians; D000818:Animals; D002247:Carbon Isotopes; D003594:Cytoplasmic Granules; D004295:Dihydroxyphenylalanine / Q000378:metabolism*; D004578:Electron Spin Resonance Spectroscopy; D006801:Humans; D007259:Infrared Rays; D008099:Liver / Q000032:analysis*; D008543:Melanins / Q000032:analysis*; D008856:Microscopy, Fluorescence; D009638:Norepinephrine / Q000378:metabolism*; D010860:Pigments, Biological / Q000032:analysis*; D013057:Spectrum Analysis; D013378:Substantia Nigra / Q000032:analysis*
chemical_list: D002247:Carbon Isotopes; D008543:Melanins; D010860:Pigments, Biological; D004295:Dihydroxyphenylalanine; D009638:Norepinephrine