1. American Medical Association. (1993). Guides to the evaluation of permanent impairment (4th ed.). American Medical Association Press.
2. American Medical Association. (2000). Guides to the evaluation of permanent impairment (5th ed.). American Medical Association Press.
3. American Medical Association. (2007). Guides to the evaluation of permanent impairment (6th ed.). American Medical Association Press.
4. American Psychological Association. (2009). ICD vs. DSM. Monitor on psychology, 40(9), 63. https://www.apa.org/monitor/2009/10/icd-dsm
5. American Psychiatric Association. (2000). Diagnostic and Statistical Manual of Mental Disorders: DSM-IV-TR. Amer Psychiatric Pub Inc.