No abstract available
MeSH terms
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Atmosphere*
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Climate*
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Coumaric Acids / analysis
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Cyanobacteria / chemistry
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Flavonoids / analysis
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Fossils
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Geologic Sediments
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Ozone*
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Pigments, Biological / analysis
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Plants / chemistry
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Pollen / chemistry
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Solar Activity
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Time
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Ultraviolet Rays*
Substances
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Coumaric Acids
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Flavonoids
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Pigments, Biological
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Ozone