1. Generic Drug and Biosimilars Access and Savings in the US. The Association for Accessible Medicines [online]. https://accessiblemeds.org/resources/blog/2019-generic-drug-and-biosimilars-access-savings-us-report. Accessed 31 July 2019.
2. Uhl K. 2017 Was Another Record-Setting Year for Generic Drugs [online]. https://www.fda.gov/NewsEvents/Newsroom/FDAVoices/ucm613832.htm. Accessed 19 Feb 2019.
3. Generic Drug Access & Savings in the U.S.—Access in Jeopardy. The Association for Accessible Medicines [online]. https://accessiblemeds.org/resources/blog/2018-generic-drug-access-and-savings-report. Accessed 19 Feb 2019.
4. ASPE Issue Brief: Observations on Trends in Prescription Drug Spending. United States Department of Health and Human Services—Assistant Secretary for Planning and Evaluation [online]. https://aspe.hhs.gov/pdf-report/observations-trends-prescription-drug-spending. Accessed 19 Feb 2019.
5. Shrank WH, Hoang T, Ettner SL, Glassman PA, Nair K, DeLapp D, et al. The implications of choice: prescribing generic or preferred pharmaceuticals improves medication adherence for chronic conditions. Arch Intern Med. 2006;166(3):332–7. https://doi.org/10.1001/archinte.166.3.332.