1. GHDx. (2019). United States MarketScan commercial claims and encounters database. Retrieved from: http://ghdx.healthdata.org/record/united-states-marketscan-commercial-claims-and-encounters-database-2012
2. Medicare Payment Advisory Commission. (2019, Mar). Report to the congress: Medicare payment policy. Retrieved from: http://medpac.gov/docs/default-source/reports/mar19_medpac_entirereport_sec.pdf?sfvrsn=0
3. Contrary to cost-shift theory, lower Medicare hospital payment rates for inpatient care lead to lower private payment rates.;Health Affairs (Project Hope),2013
4. Centers for Medicare and Medicaid. (2018). Cost reports. Retrieved from: https://www.cms.gov/Research-Statistics-Data-and-Systems/Downloadable-Public-Use-Files/Cost-Reports/
5. Hoadley, J., Lucia, K., & Kona, M. (2019, Jan 18). State efforts to protect consumers from balance billing. To the Point. Retrieved from: https://www.commonwealthfund.org/blog/2019/state-efforts-protect-consumers-balance-billing