DOI: 10.1055/s-00000071

Seminars in Neurology

References

Jones KH, Ellis J, von Schantz M, Skene DJ, Dijk DJ, Archer SN.
Age-related change in the association between a polymorphism in the PER3 gene and preferred timing of sleep and waking activities 
J Sleep Res 2007; 16(1): 12-16  

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