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. 2008 May 13;116(9):1248–1253. doi: 10.1289/ehp.11164

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Percentage of responders without probable PTSD diagnosis with positive scores on individual PCL symptom checklist items in the month before examination. Items are taken from the PCL (Blanchard et al. 1996). A response at one of the three highest levels (moderately, quite a bit, or extremely) to a PCL item was considered positive. Numbers in parentheses indicate the item numbers in the checklist.