1. The White House. The Build Back Better Framework. https://www.whitehouse.gov/build-back-better/.
2. European Federation of Pharmaceutical Industries and Associations. The pharmaceutical industry in figures. 2021. www.efpia.eu.
3. Yu NL, Helms Z, Bach PB. R&D costs for pharmaceutical companies do not explain elevated US drug prices. Health Aff 2017:1. https://www.healthaffairs.org/do/10.1377/forefront.20170307.059036/full/.
4. The High Cost of Prescription Drugs in the United States
5. Ollendorf D, Synnott P, Neumann P. External reference pricing: the drug-pricing reform America needs? 2021. https://www.commonwealthfund.org/publications/issue-briefs/2021/may/external-reference-pricing-drug-pricing-reform-america-needs#31.