Jacques Bradwejn, chairman of the psychiatry department of the University of Ottawa, believes that although genetic and biologic factors may produce the disorder, attacks “can be triggered by stressful life events. ”
लोकसंख्येकडील शस्त्रांची संख्या कमी करण्यासाठी ब्राझीलने एक मोहीम काढली.