1. The occurrence of sleep-disordered breathing among middle-aged adults;Young;N Engl J Med,1993
2. Risk factors for obstructive sleep apnea in adults;Young;JAMA,2004
3. Characteristics of insomnia in the United States: results of the 1991 National Sleep Foundation Survey;Ancoli-Israel;Sleep,1999
4. Risk factors associated with complaints of insomnia in a general adult population. Influence of previous complaints of insomnia;Klink;Arch Intern Med,1992
5. The epidemiology and occurrence of insomnia;Rosekind;J Clin Psychiatry,1992