1. American Psychiatric Association. (2000). Diagnostic and statistical manual of mental disorders (4th ed., Text Revision). Washington, DC: Author.
2. Atrill, R., Kinniburgh, J., & Power, L. (2001). Social exclusion and HIV: A report. Retrieved May 20, 2009, from http://www.tht.org.uk/informationresources/publications/policyreports/socialexclusionandhiv582.pdf.
3. The prevalence of transsexualism in the Netherlands;Bakker;Acta Psychiatrica Scandinavia,1993
4. Bockting, W.O., & Goldberg, J.M. (2006). Guidelines for transgender care [Published simultaneously by Haworth Medical press as the International Journal of Transgenderism,9].
5. Transgender HIV prevention: A qualitative needs assessment;Bockting;AIDS Care,1998