For citation: Brymer, M., Jacobs, A., Layne, C., Pynoos, R., Ruzek, J., Steinberg, A., Vernberg, E., Watson, P., (National Child Traumatic Stress Network and National Center for PTSD), Psychological First Aid: Field Operations Guide, 2nd edition, July, 2006. Available on: https://www.nctsn.org/.
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