References
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- Spiegel , H. and Spiegel , D. 1987 . Trance and Treatment: clinical uses of hypnosis , Washington, D.C. : American Psychiatric Press .
- Weitzenhoffer , A. M. and Hilgard , E. R. 1962 . Stanford Hypnotic Susceptibility Scale, Form C , Palo Alto : Consulting Psychologists Press, Inc .