Which of the following is NOT TRUE about post - traumatic stress disorder?

Treatment of choice for PTSD is psychotherapy in the form of cognitive behavior therapy often in combination with pharmacotherapy. There is no evidence that single - session individual psychological briefing is a useful treatment for PTSD. Eye movement desensitization and reprocessing (EMDR) is an effective treatment for PTSD. Symptoms of PTSD develop within 6 months of the stressor, however, 10% patients have delayed onset. PTSD patients are high risk for alcohol abuse.