Prevalence, costs, and consequences of insomnia. Reference bibliography: 1993-1998.
Information Sciences and Services, Published Information, Wyeth-Ayerst Research, Radnor, PA, USA.
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Margolis
D017048:Health Care Costs; D006801:Humans; D015995:Prevalence; D007319:Sleep Initiation and Maintenance Disorders / Q000191:economics* / Q000453:epidemiology*