Children (2) Perception (2) Children (2) puits (1) temps (durée) (1) spectacle (1) recherche (1) besoin (1) modèle (1) santé (1) éducation (1) enfant (1) procès (1) taux (1) Education (1) Diagnosis (1) Development (1) Diseases (1) Communication (1) Origin (1) Week (1) Wealth (1) Vision (1) Time (1) Teachers (1) Science (1) Research (1) Quality of products (1) Population (1) Poor (1)