Gay and Lesbian Alliance Against Defamation. "GLAAD Media Reference Guide – Transgender glossary of terms", "GLAAD", USA, May 2010. Retrieved on 2011-02-24. "An umbrella term for people whose gender identity and/or gender expression differs from what is typically associated with the sex they were assigned at birth."
"USI LGBT Campaign – Transgender Campaign" (retrieved 11 January 2012) defines transgender people as "People who were assigned a sex, usually at birth and based on their genitals, but who feel that this is a false or incomplete description of themselves."
