title: Emotional reactions in twins [proceedings].
mesh_terms: D000293:Adolescent; D000328:Adult; D004644:Emotions; D005260:Female; D006339:Heart Rate; D006801:Humans; D011247:Pregnancy; D013315:Stress, Psychological / Q000502:physiology*; D014427:Twins; D014430:Twins, Monozygotic