2011j-827 addiction addictions adolescent adolescentpsychology adolescentpsychotherapy adolescents behaviormodification behaviortherapy child childpsychotherapy clinicalchildpsychology cognitivebehavioraltherapy cognitivetherapy cognitivetherapyforchildren cognitivetherapyforteenager cognitivetherapyforteenagers criminology enfants jeunesendifficulté juveniledelinquency juvenileoffenders mentaldisorders methods modificationducomportement polytoxicomanie problemyouth psychiatry psychologieclinique psychology psychopathology psychotherapy psychothérapie rehabilitation servicesocialauxjeunesdélinquants socialwork socialworkwithjuveniledelinquents substance-relateddisorders substanceabuse substanceuse therapy thérapiecognitivepourenfants traitement treatment