test (1) température (1) spectacle (1) pollution (1) association (1) papier (1) santé (1) environnement (1) pollution de l'air (1) effet (1) éducation (1) science économique (1) République populaire de Chine (1) Education (1) Protection (1) Birth (1) Temperature (1) Standard deviations (1) Social groups (1) Respect (1) Registers of births, etc (1) Pollution (1) Parturition (1) Paper (1) Nature and nurture (1) Mothers (1) Labor (Obstetrics) (1) Infants (1) Heat (1) Health (1)