1. NIH state of the science statement on manifestations and management of chronic insomnia in adults;National Institutes of Health;J Clin Sleep Med,2005
2. Societal costs of insomnia;Léger;Sleep Med Rev,2010
3. Diagnostic and statistical manual of mental disorders, text revision;American Psychiatric Association,2000
4. The International classification of sleep disorders (ICSD-2): diagnostic and coding manual;American Academy of Sleep Medicine,2005
5. Practice parameters for the evaluation of chronic insomnia. An American Academy of Sleep Medicine report standards of practice committee of the American Academy of Sleep Medicine;Chesson;Sleep,2000