1. Sleep is for tissue restoration;Adam;Journal of the Royal College of Physicians,1977
2. The first night effect: an EEG study of sleep;Agnew;Psychophysiology,1966
3. Diagnostic and statistical manual of mental disorders;American Psychiatric Association,1994
4. The international classification of sleep disorders, revised;American Sleep Disorders Association,1997
5. Validation of the Insomnia Severity Index as an outcome measure for insomnia research;Bastien;Sleep Medicine,2001