article: Sexual orientation
links: Hormone Left-handedness Sigmund Freud Scientist Carl Jung Social stigma Romantic orientation United Nations High Commissioner for Human Rights Y chromosome Gene Gay Androphilia and gynephilia X chromosome Polysexuality United States Supreme Court Havelock Ellis Pansexuality Third sex Sexology Sexual intercourse American Psychiatric Association Sociology Alfred Kinsey Yogyakarta Principles United States Cell Intersexuality Heterosexuality Cognitive-behavioral therapy Antibody Homophobia Berlin Human sexual activity Statistics Samoa Kinsey Reports Identical twins Karl Heinrich Ulrichs Kinsey Scale African Americans Coming out LGBT Effeminacy