title: The epidemiology of anxiety.
mesh_terms: D000328:Adult; D001008:Anxiety Disorders / Q000453:epidemiology* / Q000523:psychology / Q000628:therapy; D006801:Humans; D010200:Panic; D010698:Phobic Disorders / Q000453:epidemiology; D013313:Stress Disorders, Post-Traumatic / Q000453:epidemiology; D014481:United States