7Rosekind MR. J. The epidemiology and occurrence of insomnia [J]. clinical psychiatry, 1992,52(supple) : 4-6.
8David A. Katz, Colleen A. Mc Homey. Clinical Correlates of Insomnia in Patients with Chronic Illness[J]. Arch Intern Med, 1998,158( 10): 1099-1107.
9Tung-PingSu, Shuang-RuangHuang, et al. Prevalence and risk factors of insomnia in community-dwelling Chinese elderly: a Taiwan Residents urban area survey[J]. Australia and New Zealand Journal of Psychiatry, 2004,38 (9) : 706-713.
10Michael HS. Chronic Insomnia[J]. N Engl J Med,2005,353 (8):803-810.
