No abstract available
MeSH terms
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Adult
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Biological Clocks / physiology*
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Circadian Rhythm / physiology*
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Double-Blind Method
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Humans
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Male
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Melatonin / analogs & derivatives*
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Melatonin / analysis
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Melatonin / metabolism*
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Melatonin / urine
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Pineal Gland / metabolism*
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Saliva / chemistry*
Substances
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6-sulfatoxymelatonin
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Melatonin