sommeil (1) association (1) besoin (1) Union européenne (1) âge (1) enfant (1) Language (1) Children (1) Scores (1) Wechsler Preschool and Primary Scale of Intelligence (1) Preschool children (1) Ci (Chinese poetry) (1) Tallies (1) Social groups (1) Sleep (1) School children (1) Regression analysis (1) Meta-analysis (1) Intellect (1) Estimates (1) Eden (1) Day (1) Children (1) Causation (1) Causality (Physics) (1) Age (1) Ability (1) European Union (1) Age (1) Behavior (1)