Casein kinase I epsilon (CKIɛ) N408 allele is very rare in the Brazilian population and is not involved in susceptibility to circadian rhythm sleep disorders

The International Classification of Sleep Disorders

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A self-assessment questionnaire to determine morningness- eveningness in human circadian rhythms

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Association of structural polymorphisms in the human period3 gene with delayed sleep phase syndrome

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The 3111T/C polymorphism of <i>hClock</i> is associated with evening preference and delayed sleep timing in a Japanese population sample

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