1. Subjective sleep quality and suicidality in patients with major depression
2. American Academy of Sleep Medicine (2001). The International classification of sleep disorders, revised (ICSD-R). Diagnostic and coding manual. Chicago, IL.
3. American Psychiatric Association (2000). Diagnostic and statistical manual of mental disorders (4th Edn, Text Revision DSM-IV-TR). Washington, DC: American Psychiatric Association Press.