Prevalence of insomnia and associated factors in a community sample of elderly individuals in South Korea

The Prevalence of Insomnia, Its Sociodemographic and Clinical Correlates, and Treatment in Rural and Urban Regions of Beijing, China: A General Population-Based Survey

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DSM-IV psychiatric comorbidity according to symptoms of insomnia: a nationwide sample of Korean adults

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Disorders of glucose metabolism and insulin resistance in patients with obstructive sleep apnoea syndrome

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Restless legs syndrome in older people: a community-based study on its prevalence and association with major depressive disorder in older Korean adults

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Sleep disturbances in elderly subjects: an epidemiological survey in an Italian district

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Association of insomnia with quality of life, work productivity, and activity impairment

(2009) Susan C. Bolge et al.   QUALITY OF LIFE RESEARCH