title: Research suggests that the sex ratio (proportion male) of siblings of some samples of male homosexuals may be high.
authors.forename: W H
authors.initials: WH
authors.lastname: James
mesh_terms: D005260:Female; D018452:Homosexuality, Female; D018451:Homosexuality, Male; D006801:Humans; D008297:Male; D009679:Nuclear Family; D012744:Sex Ratio