1. Diagnostic and statistical manual of mental disorders;American Psychiatric Association,1994
2. Adult men and women with trichotillomania. A comparison of male and female characteristics;Christensen;Psychosomatics,1994
3. Trichotillomania — from prevalence to comorbidity;Christenson;Psychiatric Times,1995
4. The characterization and treatment of trichotillomania;Christenson;The Journal of Clinical Psychiatry,1996
5. Trichotillomania;Christenson,1994