No abstract available
Keywords:
Biological Clocks; Circadian Rhythm; Light; Seasons; Sleep; Sunlight.
MeSH terms
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Biological Clocks
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Chronobiology Discipline*
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Circadian Clocks*
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Humans
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Photoperiod*
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Portugal
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Seasons*
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Sleep / physiology
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Sleep Medicine Specialty*
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Societies, Medical
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Sunlight
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Wakefulness / physiology