additif (1) Amérique du Nord (1) analyse (1) variation génétique (1) génétique (1) Europe (1) environnement (1) effet (1) âge (1) Amérique du Nord (1) Europe (1) Asie (1) Variation (1) Children (1) Genetics (1) Twins (1) Sex (1) Proportion (1) Play (1) Obesity (1) North America (1) Nature and nurture (1) Manufacturers' agents (1) Infants (1) Girls (1) Genetics (1) Expression (1) Evidence (1) Euthenics (1) Europe (1)