References

• 1997Bias in meta-analysis detected by a simple, graphical test56,637 cited
• 2000Diagnostic and Statistical Manual of Mental Disorders.19,744 cited
• 2008Cochrane Handbook for Systematic Reviews of Interventions Version 5.0.1. The Cochrane Collaboration5,525 cited
• 1995Sleep Complaints Among Elderly Persons: An Epidemiologic Study of Three Communities1,610 cited
• 2005Sedative hypnotics in older people with insomnia: meta-analysis of risks and benefits1,158 cited
• 2011Cochrane handbook for systematic reviews of interventions. Version 5.1.0 [updated March 2011]. The Cochrane Collaboration810 cited
• 2000An Epidemiological Study of Insomnia Among the Japanese General Population523 cited
• 2000Prevalence of insomnia in a survey of 12 778 adults in France518 cited
• 2005An efficacy, safety, and dose–response study of Ramelteon in patients with chronic primary insomnia434 cited
• 2006Effects of ramelteon on patient-reported sleep latency in older adults with chronic insomnia265 cited
• 2001How Age and Daytime Activities Are Related to Insomnia in the General Population: Consequences for Older People253 cited
• 2003Cognitive behavioural interventions for sleep problems in adults aged 60+231 cited
• 1999The direct economic costs of insomnia in the United States for 1995.229 cited
• 2007Evaluation of the Efficacy and Safety of Ramelteon in Subjects with Chronic Insomnia