No abstract available
Publication types
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Research Support, Non-U.S. Gov't
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Research Support, U.S. Gov't, Non-P.H.S.
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Adult
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Child
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Child Rearing
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Circadian Rhythm*
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Electrocardiography / methods
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Female
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Heart Rate*
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Humans
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Male
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Middle Aged
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Pregnancy
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Twins*
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Twins, Monozygotic*