title: Homosexuality and older brothers.
authors.forename: W J
authors.initials: WJ
authors.lastname: Turner
mesh_terms: D000328:Adult; D001722:Birth Order; D005190:Family; D005260:Female; D005333:Fetus / Q000276:immunology; D006716:Homosexuality / Q000706:statistics & numerical data; D018452:Homosexuality, Female / Q000706:statistics & numerical data; D018451:Homosexuality, Male / Q000706:statistics & numerical data; D006801:Humans; D008297:Male; D012737:Sex Factors