1. The Physical Activity Guidelines for Americans;Piercy;JAMA
2. Centers for Disease Control and Prevention (CDC). Unfit to Serve: Obesity Is Impacting National Security. CDC website. https://www.cdc.gov/physicalactivity/downloads/unfit-to-serve.pdf. Published May 2017. Accessed October 1, 2018.
3. Indian Health Service (HIS). IHS profile. HIS website. https://www.ihs.gov/newsroom/factsheets/ihsprofile/. July 2018. Accessed October 1, 2018.
4. Centers for Medicare & Medicaid Services (CMS). CMS Fast Facts. CMS website. https://www.cms.gov/Research-Statistics-Data-and-Systems/Statistics-Trends-and-Reports/CMS-Fast-Facts/index.html. Modified August 1, 2018. Accessed October 1, 2018.