1. National Comorbidity Study (NCS). [Data Table] 2007 [cited 2017 August 21]; Available from: https://www.hcp.med.harvard.edu/ncs/index.php .
2. National Comorbidity Study (NCS). [Data Table 1] 2007 [cited 2019 August 21]; Available from: https://www.hcp.med.harvard.edu/ncs/index.php .
3. The economic burden of anxiety disorders in the 1990s;Greenberg,1999
4. Lépine, J.-P.The Epidemiology of Anxiety Disorders: Prevalence and Societal Costs. 2002. 64, 4-8.
5. Quality of life in the anxiety disorders: A meta-analytic review;Olatunji;Clinical Psychology Review,2007