Origin (2) Students (2) Social status (2) Schools (2) School children (2) Religion (2) Months (2) Diet (2) Children (2) Breastfeeding (2) état (1) établissement scolaire (1) religion (1) région (1) association (1) ménage (1) aliment (1) emploi (1) âge (1) niveau d'études (1) index (1) Brésil (1) Economic conditions (1) Food (1) Employment (1) Children (1) Methods (1) Labor (1) Ci (Chinese poetry) (1) Table (1)