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skos:definition |
MSH: Dyssomnias associated with disruption of the normal 24 hour sleep wake cycle secondary to travel (e.g., JET LAG SYNDROME), shift work, or other causes.,NCI: A sleep disorder characterized by persistent sleep disruption (excessive sleepiness and/or insomnia) that is due to a conflict between the individual's internal sleep-wake system and the demands of his or her environment regarding the timing and duration of sleep.
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