References
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- Salkovskis P M, Forrester E, Richards C. Cognitive behavioural approach to understanding obsessional thinking. British Journal of Psychiatry 1998; 173(Suppl. 35)53–63
- Steketee G. Overcoming obsessive compulsive disorder–a behavioural and cognitive protocol for the treatment of OCD. New Harbinger, Oakland 1999
- Baer L. Getting control. Little, Brown, New York 1991
- Foa E B, Wilson R. Stop obsessing. Bantam, New York 1991