Temperaments in twins.
D000293:Adolescent; D002648:Child; D003071:Cognition; D004644:Emotions; D005260:Female; D005823:Genetics; D006801:Humans; D007398:Interpersonal Relations; D007899:Leisure Activities; D008297:Male; D010551:Personality; D011247:Pregnancy; D012737:Sex Factors; D012919:Social Behavior; D013694:Temperament; D014427:Twins; D014429:Twins, Dizygotic; D014430:Twins, Monozygotic