1. Epidemiology of sleep disorders;Lugaresi;Psychiatr Ann,1987
2. Prevalence of sleep disorders in the Los Angeles metropolitan area;Bixler;Am J Psychiatry,1979
3. Diagnostic and Statistical Manual of Mental Disorders. Revised third edition;American Psychiatric Association,1987
4. Diagnostic Classification of Sleep and Arousal Disorders;Association of Sleep Disorders Centers and the Association for the Psychophysiological Study of Sleep;Sleep,1979
5. The International Classification of Sleep Disorders,1990