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Thoracic aggressive vertebral hemangioma with neurologic deficit: A retrospective cohort study

Wei Hu1, Shun-Li Kan1, Hui-Bin Xu2

  • 1Department of Spine Surgery, Tianjin Union Medical Center.

Medicine
|October 14, 2018
PubMed

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Humans engage in aggression when they seek to cause harm or pain to another person. Aggression takes two forms depending on one’s motives: hostile or instrumental. Hostile aggression is motivated by feelings of anger with intent to cause pain; a fight in a bar with a stranger is an example of hostile aggression. In contrast, instrumental aggression is motivated by achieving a goal and does not necessarily involve intent to cause pain (Berkowitz, 1993); a contract killer who murders for...
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