Post Traumatic Stress Disorder (PTSD): Definition
PTSD is an emotional disorder. It is a mental illness resulting from what the sufferer perceives as a life-threatening or intensely terrifying experience.
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"Post Traumatic Stress Disorder (PTSD)" by Roxanne Dryden-Edwards, MD
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What Are the Symptoms, Causes, and Treatments of Childhood Post-Traumatic Stress Disorder?