TY - JOUR T1 - Associations between diurnal preference, sleep quality and externalizing behaviours: a behavioural genetic analysis JO - Psychological Medicine PY - 2010/09/14 AU - Barclay NL AU - Eley TC AU - Maughan B AU - Rowe R AU - Gregory AM ED - SP - 1 EP - 12 Y2 - 2025/03/13 ER -