Teenagers (3) Literature (3) Use (3) association (2) besoin (2) mesure (méthode analytique) (2) littérature (2) exposition (2) Prevention (2) Methods (2) Internet (2) Social networks (2) Social groups (2) Mental health (2) Measurement (2) Impact (2) Body image (2) Addition (2) Methods (2) Social media (2) Research (2) Utilization (2) Usage (2) Social networks (2) Mental health (2) monde (1) puits (1) poids (1) enquête (1) surveillance (1)