enquête (1) recherche (1) persistance (1) association (1) papier (1) méthodologie (1) information (1) ménage (1) analyse (1) santé (1) élasticité (1) effet (1) âge (1) point (1) abords (agglomération) (1) index (1) budget (1) Brésil (1) Children (1) Control (1) Area (1) Methodology (1) Area (1) Social groups (1) Single parents (1) Research (1) Proportion (1) Population (1) Persistence (1) Parents (1)