title: How common is delayed posttraumatic stress disorder?
mesh_terms: D000063:Accidents, Traffic; D000328:Adult; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008875:Middle Aged; D013313:Stress Disorders, Post-Traumatic / Q000175:diagnosis* / Q000453:epidemiology / Q000523:psychology; D013997:Time Factors