Sexual differences in the brain.
D000818:Animals; D001717:Birds; D001921:Brain / Q000033:anatomy & histology / Q000502:physiology*; D005260:Female; D012739:Gonadal Steroid Hormones / Q000502:physiology*; D008297:Male; D051381:Rats; D012727:Sex Characteristics; D012726:Sexual Behavior, Animal / Q000502:physiology*
D012739:Gonadal Steroid Hormones