1. CDC Foundation. What is public health? Available at: http://www.cdcfoundation.org/content/what-public-health. Accessed May 28, 2016.
2. World Health Organization. Trade, foreign policy, diplomacy and health. Available at: http://www.who.int/trade/en/. Accessed May 28, 2016.
3. Health disparities and access to health;Lurie;JAMA,2007
4. Inequality in America: the contribution of health centers in reducing and eliminating disparities in access to care;Politzer;Med Care Res Rev,2001
5. Multiple chronic conditions chartbook;Gerteis,2014