Ego phenomenology in the human twin.
D000328:Adult; D004532:Ego; D005260:Female; D005824:Genetics, Behavioral; D006801:Humans; D008297:Male; D010555:Personality Inventory; D011247:Pregnancy; D014427:Twins / Q000523:psychology*; D014429:Twins, Dizygotic / Q000523:psychology*; D014430:Twins, Monozygotic / Q000523:psychology*