SilvanaRomero Université catholique de Louvain Belgium In programme October 23 13:20 to 14:50 View hours & dates Hours & Dates Plenary session Poster session Big debate Structured session Workshop Oral presentation session Short communication session Poster guided tour Wednesday, 23 October 13:20 Poster The effectiveness of prevention programs for problematic usage of internet in adolescents and youths: a systematic review 13:20 to 14:50 Guided poster tours room Silvana Romero