Qaseem A, Kansagara D, Forciea MA, Cooke M, Denberg TD (iulie 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 (iulie 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.