Is sexual preference determined by the brain? Introduction.
D001921:Brain / Q000502:physiology*; D001931:Brain Mapping; D004292:Dominance, Cerebral / Q000502:physiology; D005260:Female; D006716:Homosexuality / Q000523:psychology*; D006801:Humans; D008297:Male; D012723:Sex; D012725:Sexual Behavior / Q000502:physiology*