Gender Health Center: http://www.thegenderhealthcenter.org/

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Sacramento LGBT Community Center: http://saccenter.org/

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WPATH: http://www.wpath.org/

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National Gay and Lesbian Task Force: http://www.ngltf.org/

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Human Rights Campaign: http://www.hrc.org/resources

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GLAAD: http://www.glaad.org/

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PFLAG: http://community.pflag.org/Page.aspx?pid=194&srcid=-2