Donna L Robilliard

A length polymorphism in the circadian clock gene Per3 is linked to delayed sleep phase syndrome and extreme diurnal preference.

Josephine Arendt, Adrian J. Williams, D. Skene, 2003, Sleep.

The 3111 Clock gene polymorphism is not associated with sleep and circadian rhythmicity in phenotypically characterized human subjects

Josephine Arendt, D. Skene, D. Léger, 2002, Journal of sleep research.