1. American Psychiatric Association (1994). Diagnostic and Statistical Manual of Mental Disorders. (4th ed). Washington, DC: American Psychiatric Association.
2. Schizophrenia and changes in physical appearance;Campo;Journal of Clinical Psychiatry,1998
3. A Theory of Objective Self-awareness;Duval,1972
4. Body Experience in Fantasy and Behaviour;Fisher,1970
5. The effects of contamination and washing in obsessional patients;Hodgson;Behaviour Research and Therapy,1972