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机译:Lifestyle factors and social ties associated with the frequency of laughter after the Great East Japan Earthquake: Fukushima Health Management Survey
Radiation Medical Science Center for the Fukushima Health Management Survey;
National Institute of Mental Health, National Center of Neurology and Psychiatry;
Department of Epidemiology, Fukushima Medical University School of MedicineFukushima Prefectural Hospital Bureau;
Frequency of laughter; Disaster; Lifestyle and social factors; Cross-sectional study;