“불면증”. 《질병관리본부 국가건강정보포털(KCDC)》. 2019년 4월 26일에 원본 문서에서 보존된 문서. 2019년 4월 27일에 확인함.
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Qaseem A, Kansagara D, Forciea MA, Cooke M, Denberg TD (July 2016). “Management of Chronic Insomnia Disorder in Adults: A Clinical Practice Guideline From the American College of Physicians”. 《Annals of Internal Medicine》 165 (2): 125–33. doi:10.7326/M15-2175. PMID27136449.
Qaseem A, Kansagara D, Forciea MA, Cooke M, Denberg TD (July 2016). “Management of Chronic Insomnia Disorder in Adults: A Clinical Practice Guideline From the American College of Physicians”. 《Annals of Internal Medicine》 165 (2): 125–33. doi:10.7326/M15-2175. PMID27136449.