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机译:Time trends of technology mediated communication with friends among bullied and not bullied children in four Nordic countries between 2001 and 2010
Univ Gothenburg, Dept Social Work, POB 720, SE-40530 Gothenburg, Sweden;
HBSC, Ostersund, Sweden;
Univ Akureyri, Dept Social Sci, Akureyri, IcelandUniv Jyvaskyla, Dept Hlth Sci, Jyvaskyla, FinlandUniv Gothenburg, Ctr Appl Biostat, Gothenburg, Sweden;
bullying; child public health; communication; cross-sectional study; mental health; social relationships;