6Ford DE,Kamerow DB.Epidemiologic study of sleep disturbances andpsychiatric disorders[J].An opportunity for prevention JAMA,1989,26(2):1479-1484.
7Johnson EO,Roth T,Schultz L.et al.Epidemiology of DSMIV insomniain adolescenceslifetime prevalence,chronicity[J].and an emergent gen-der difference,Pediatrics,2006,22(17):247-e256.
8Ohayon MM,Prevalence of DSM-IV diagnostic criteria of insomnia {dis-tinguishing insomnia related to mental disorxiers from sleep disorders[J].J Psychiatr Res,1997,15(31):333-346.
9Katz DA,McHorney CA:Clinical correlates of insomnia in patients with.chronic illness[J].Arch Intern Med,1998,5(18):1099-1107.
10Ohayon MM. Prevalence of DSM - IV diagnostic criteria of insomnia: distinguishing insomnia related to mental disorders from sleep disorders[J]. J Psychiatr Res, 1997, 31 (3) : 333 -346.
