Ultraviolet induced biochemical alterations in skin. I. Urocanic acid.
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D006801:Humans; D007093:Imidazoles / Q000737:chemistry*; D012867:Skin / Q000737:chemistry*; D014466:Ultraviolet Rays; D014560:Urocanic Acid
D007093:Imidazoles; D014560:Urocanic Acid
IMIDAZOLES/chemistry; SKIN/chemistry; ULTRAVIOLET RAYS