1. National Institute of Mental Health (NIMH). Major Depression 2017 [Available from: https://www.nimh.nih.gov/health/statistics/major-depression.shtml.
2. Centers for Medicare & Medicaid Services. CMS Fast Facts 2019 [Available from: Available from: https://www.cms.gov/fastfacts/.
3. The economic burden of adults with major depressive disorder in the United States (2005 and 2010);PE Greenberg;J Clin Psychiatry,2015
4. Susbtance Abuse and Mental Health Services Administration. Prohections of National Expenditures for Treatment of Mental and Susbtance Use Disorders, 2010–2020 Rockville, MD [Available from: Available from: https://store.samhsa.gov/system/files/sma14-4883.pdf.