Lee, So Hee, Yae Eun Seo, Kyoung-Beom Kim, Jin-Won Noh, and Eun Ji Kim. 2020. “Long-Term Risks of Complicated Grief and Insomnia in Student Survivors of the Sewol Ferry Disaster in South Korea: A Four-Year Observational Follow-up Study”. The Ethiopian Journal of Health Development 34 (Special 3). https://ejhd.org/index.php/ejhd/article/view/2950.