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  1. Can a Smartphone App Help Prevent Depression and Mania from Returning?

    Article • American Journal of Psychiatry, June 2026, American Psychiatric Association

    Heon Jeong Lee

  2. Solar radiation increases suicide rate after adjusting for other climate factors in South Korea

    Article • Acta Psychiatrica Scandinavica, December 2016, Wiley

    Chul-Hyun Cho, Heon Jeong Lee