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Test Hypotheses about a Population Proportion
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Recurrent Nightmares
Repeatedly experiencing intensely frightening dreams that disturb sleep and can have a significant impact on daytime functioning.
Essential Oils
Concentrated plant extracts that retain the natural smell and flavor, or "essence," of their source, used in aromatherapy and various traditional medicines.
Insomnia
Inability to obtain a sufficient quality or quantity of sleep.
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