PTSD and related disorders / Matthew J. Friedman -- Epidemiology of PTSD / Carlos Blanco -- Neurobiology of PTSD / Arieh Y. Shalev, Asaf Gilboa, and Ann Rasmusson -- Pharmacotherapy of PTSD / Dan J. Stein and Jonathan Ipser -- Psychological interventions for trauma exposure and PTSD / Richard A. Bryant -- (Disaster) public mental health / Joop de Jong.